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30924690 = 2351030823
BaseRepresentation
bin111010111110…
…1111110010010
32011012010200220
41311331332102
530404042230
63022453510
7523566306
oct165757622
964163626
1030924690
11165021a5
12a434296
136539b44
14416dd06
152aacd10
hex1d7df92

30924690 has 16 divisors (see below), whose sum is σ = 74219328. Its totient is φ = 8246576.

The previous prime is 30924671. The next prime is 30924703. The reversal of 30924690 is 9642903.

It is a super-2 number, since 2×309246902 = 1912672903192200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515382 + ... + 515441.

It is an arithmetic number, because the mean of its divisors is an integer number (4638708).

Almost surely, 230924690 is an apocalyptic number.

30924690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30924690 is an abundant number, since it is smaller than the sum of its proper divisors (43294638).

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

30924690 is a wasteful number, since it uses less digits than its factorization.

30924690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030833.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 30924690 is about 5560.9972127308. The cubic root of 30924690 is about 313.8834746878.

The spelling of 30924690 in words is "thirty million, nine hundred twenty-four thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1030823 2061646 3092469 5154115 6184938 10308230 15462345 30924690