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3144245200 = 2452173712497
BaseRepresentation
bin1011101101101001…
…0101111111010000
322010010110012112221
42323122111333100
522414411321300
61240000030424
7140626433425
oct27332257720
98103405487
103144245200
111373931a58
12739002414
133b1549c25
1421b833d4c
1513608831a
hexbb695fd0

3144245200 has 120 divisors (see below), whose sum is σ = 8215235352. Its totient is φ = 1151631360.

The previous prime is 3144245179. The next prime is 3144245207. The reversal of 3144245200 is 25424413.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 63107136 + 3081138064 = 7944^2 + 55508^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144245207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245352 + ... + 257848.

Almost surely, 23144245200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3144245200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4107617676).

3144245200 is an abundant number, since it is smaller than the sum of its proper divisors (5070990152).

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

3144245200 is a wasteful number, since it uses less digits than its factorization.

3144245200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12569 (or 12558 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 3144245200 is about 56073.5695314646. The cubic root of 3144245200 is about 1465.0039720798.

Adding to 3144245200 its reverse (25424413), we get a palindrome (3169669613).

The spelling of 3144245200 in words is "three billion, one hundred forty-four million, two hundred forty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 37 40 50 68 74 80 85 100 136 148 170 185 200 272 296 340 370 400 425 592 629 680 740 850 925 1258 1360 1480 1700 1850 2516 2960 3145 3400 3700 5032 6290 6800 7400 10064 12497 12580 14800 15725 24994 25160 31450 49988 50320 62485 62900 99976 124970 125800 199952 212449 249940 251600 312425 424898 462389 499880 624850 849796 924778 999760 1062245 1249700 1699592 1849556 2124490 2311945 2499400 3399184 3699112 4248980 4623890 4998800 5311225 7398224 7860613 8497960 9247780 10622450 11559725 15721226 16995920 18495560 21244900 23119450 31442452 36991120 39303065 42489800 46238900 62884904 78606130 84979600 92477800 125769808 157212260 184955600 196515325 314424520 393030650 628849040 786061300 1572122600 3144245200