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30542504 = 233817813
BaseRepresentation
bin111010010000…
…0101010101000
32010110201102212
41310200222220
530304330004
63010344252
7520415126
oct164405250
963421385
1030542504
1116271043
12a28b088
136434bb5
1440b0916
152a3496e
hex1d20aa8

30542504 has 8 divisors (see below), whose sum is σ = 57267210. Its totient is φ = 15271248.

The previous prime is 30542503. The next prime is 30542507. The reversal of 30542504 is 40524503.

It can be written as a sum of positive squares in only one way, i.e., 25020004 + 5522500 = 5002^2 + 2350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 30542504.

It is not an unprimeable number, because it can be changed into a prime (30542503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1908899 + ... + 1908914.

Almost surely, 230542504 is an apocalyptic number.

It is an amenable number.

30542504 is a deficient number, since it is larger than the sum of its proper divisors (26724706).

30542504 is a wasteful number, since it uses less digits than its factorization.

30542504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817819 (or 3817815 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 30542504 is about 5526.5273002130. The cubic root of 30542504 is about 312.5850571668.

The spelling of 30542504 in words is "thirty million, five hundred forty-two thousand, five hundred four".

Divisors: 1 2 4 8 3817813 7635626 15271252 30542504