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30469690 = 253046969
BaseRepresentation
bin111010000111…
…0111000111010
32010100000120001
41310032320322
530300012230
63005023214
7516662626
oct164167072
963300501
1030469690
1116221369
12a254b0a
13640aa04
144092186
152a1d0ca
hex1d0ee3a

30469690 has 8 divisors (see below), whose sum is σ = 54845460. Its totient is φ = 12187872.

The previous prime is 30469667. The next prime is 30469717. The reversal of 30469690 is 9696403.

It can be written as a sum of positive squares in 2 ways, for example, as 26863489 + 3606201 = 5183^2 + 1899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×304696902 = 1856804017392200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523475 + ... + 1523494.

Almost surely, 230469690 is an apocalyptic number.

30469690 is a deficient number, since it is larger than the sum of its proper divisors (24375770).

30469690 is a wasteful number, since it uses less digits than its factorization.

30469690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046976.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 30469690 is about 5519.9356880312. The cubic root of 30469690 is about 312.3364562927.

The spelling of 30469690 in words is "thirty million, four hundred sixty-nine thousand, six hundred ninety".

Divisors: 1 2 5 10 3046969 6093938 15234845 30469690