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30568634 = 219937669
BaseRepresentation
bin111010010011…
…1000010111010
32010112001021122
41310213002322
530311144014
63011105242
7520554245
oct164470272
963461248
1030568634
1116289738
12a2a2222
136443a65
1440ba25c
152a3c58e
hex1d270ba

30568634 has 8 divisors (see below), whose sum is σ = 45881940. Its totient is φ = 15274656.

The previous prime is 30568613. The next prime is 30568661. The reversal of 30568634 is 43686503.

It can be written as a sum of positive squares in 2 ways, for example, as 25959025 + 4609609 = 5095^2 + 2147^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 30568594 and 30568603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152 + ... + 7820.

Almost surely, 230568634 is an apocalyptic number.

30568634 is a deficient number, since it is larger than the sum of its proper divisors (15313306).

30568634 is a wasteful number, since it uses less digits than its factorization.

30568634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9664.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 30568634 is about 5528.8908471772. The cubic root of 30568634 is about 312.6741736253.

The spelling of 30568634 in words is "thirty million, five hundred sixty-eight thousand, six hundred thirty-four".

Divisors: 1 2 1993 3986 7669 15338 15284317 30568634