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3030420 = 2235172971
BaseRepresentation
bin1011100011110110010100
312200221221210
423203312110
51233433140
6144541420
734521021
oct13436624
95627853
103030420
11178a888
121021870
13821463
1458c548
153ecd80
hex2e3d94

3030420 has 48 divisors (see below), whose sum is σ = 8987328. Its totient is φ = 760320.

The previous prime is 3030409. The next prime is 3030431. The reversal of 3030420 is 240303.

It is an interprime number because it is at equal distance from previous prime (3030409) and next prime (3030431).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 3030396 and 3030405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466 + ... + 2505.

It is an arithmetic number, because the mean of its divisors is an integer number (187236).

Almost surely, 23030420 is an apocalyptic number.

3030420 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 3030420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4493664).

3030420 is an abundant number, since it is smaller than the sum of its proper divisors (5956908).

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

3030420 is a wasteful number, since it uses less digits than its factorization.

3030420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000 (or 2998 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 3030420 is about 1740.8101562204. The cubic root of 3030420 is about 144.7107989216.

Adding to 3030420 its reverse (240303), we get a palindrome (3270723).

The spelling of 3030420 in words is "three million, thirty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 2971 5942 8913 11884 14855 17826 29710 35652 44565 50507 59420 89130 101014 151521 178260 202028 252535 303042 505070 606084 757605 1010140 1515210 3030420