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3012450420 = 2235723133053
BaseRepresentation
bin1011001110001110…
…0101100001110100
321202221110100002210
42303203211201310
522132141403140
61214531133420
7134436256200
oct26343454164
97687410083
103012450420
1113064a4651
12700a44270
13390153555
14208127b00
15129702d80
hexb38e5874

3012450420 has 144 divisors (see below), whose sum is σ = 10128803328. Its totient is φ = 666328320.

The previous prime is 3012450403. The next prime is 3012450421. The reversal of 3012450420 is 240542103.

3012450420 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012450421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74614 + ... + 107666.

It is an arithmetic number, because the mean of its divisors is an integer number (70338912).

Almost surely, 23012450420 is an apocalyptic number.

3012450420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3012450420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5064401664).

3012450420 is an abundant number, since it is smaller than the sum of its proper divisors (7116352908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3012450420 is a wasteful number, since it uses less digits than its factorization.

3012450420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33110 (or 33101 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3012450420 is about 54885.7943369685. The cubic root of 3012450420 is about 1444.2419957732.

Adding to 3012450420 its reverse (240542103), we get a palindrome (3252992523).

The spelling of 3012450420 in words is "three billion, twelve million, four hundred fifty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 31 35 42 49 60 62 70 84 93 98 105 124 140 147 155 186 196 210 217 245 294 310 372 420 434 465 490 588 620 651 735 868 930 980 1085 1302 1470 1519 1860 2170 2604 2940 3038 3255 4340 4557 6076 6510 7595 9114 13020 15190 18228 22785 30380 33053 45570 66106 91140 99159 132212 165265 198318 231371 330530 396636 462742 495795 661060 694113 925484 991590 1024643 1156855 1388226 1619597 1983180 2049286 2313710 2776452 3073929 3239194 3470565 4098572 4627420 4858791 5123215 6147858 6478388 6941130 7172501 8097985 9717582 10246430 12295716 13882260 14345002 15369645 16195970 19435164 20492860 21517503 24293955 28690004 30739290 32391940 35862505 43035006 48587910 50207507 61478580 71725010 86070012 97175820 100415014 107587515 143450020 150622521 200830028 215175030 251037535 301245042 430350060 502075070 602490084 753112605 1004150140 1506225210 3012450420