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30655274 = 2132351263
BaseRepresentation
bin111010011110…
…0001100101010
32010200110010112
41310330030222
530321432044
63013014322
7521364656
oct164741452
963613115
1030655274
1116338841
12a3243a2
136474320
1440dda66
152a5809e
hex1d3c32a

30655274 has 16 divisors (see below), whose sum is σ = 51674112. Its totient is φ = 13533168.

The previous prime is 30655271. The next prime is 30655333. The reversal of 30655274 is 47255603.

It is a self number, because there is not a number n which added to its sum of digits gives 30655274.

It is not an unprimeable number, because it can be changed into a prime (30655271) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25034 + ... + 26229.

It is an arithmetic number, because the mean of its divisors is an integer number (3229632).

Almost surely, 230655274 is an apocalyptic number.

30655274 is a deficient number, since it is larger than the sum of its proper divisors (21018838).

30655274 is a wasteful number, since it uses less digits than its factorization.

30655274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51301.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 30655274 is about 5536.7205094713. The cubic root of 30655274 is about 312.9692968008.

The spelling of 30655274 in words is "thirty million, six hundred fifty-five thousand, two hundred seventy-four".

Divisors: 1 2 13 23 26 46 299 598 51263 102526 666419 1179049 1332838 2358098 15327637 30655274