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30623424 = 2631312269
BaseRepresentation
bin111010011010…
…0011011000000
32010121211102220
41310310123000
530314422144
63012211040
7521203056
oct164643300
963554386
1030623424
1116316917
12a309a80
136462990
1440d21d6
152a4d919
hex1d346c0

30623424 has 56 divisors (see below), whose sum is σ = 87264240. Its totient is φ = 9421824.

The previous prime is 30623407. The next prime is 30623429. The reversal of 30623424 is 42432603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 30623394 and 30623403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30623429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3639 + ... + 8630.

It is an arithmetic number, because the mean of its divisors is an integer number (1558290).

Almost surely, 230623424 is an apocalyptic number.

It is an amenable number.

30623424 is an abundant number, since it is smaller than the sum of its proper divisors (56640816).

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

30623424 is a wasteful number, since it uses less digits than its factorization.

30623424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12297 (or 12287 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 30623424 is about 5533.8435106172. The cubic root of 30623424 is about 312.8608703652.

The spelling of 30623424 in words is "thirty million, six hundred twenty-three thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 156 192 208 312 416 624 832 1248 2496 12269 24538 36807 49076 73614 98152 147228 159497 196304 294456 318994 392608 478491 588912 637988 785216 956982 1177824 1275976 1913964 2355648 2551952 3827928 5103904 7655856 10207808 15311712 30623424