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75048664 = 239381083
BaseRepresentation
bin1000111100100…
…10011011011000
312020012212102011
410132102123120
5123203024124
611240315304
71600621525
oct436223330
9166185364
1075048664
11393aa199
1221172b34
13127187c2
149d7814c
1568c6994
hex47926d8

75048664 has 8 divisors (see below), whose sum is σ = 140716260. Its totient is φ = 37524328.

The previous prime is 75048647. The next prime is 75048679. The reversal of 75048664 is 46684057.

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

It is a congruent number.

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 as a sum of consecutive naturals, namely, 4690534 + ... + 4690549.

Almost surely, 275048664 is an apocalyptic number.

It is an amenable number.

75048664 is a deficient number, since it is larger than the sum of its proper divisors (65667596).

75048664 is a wasteful number, since it uses less digits than its factorization.

75048664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381089 (or 9381085 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 75048664 is about 8663.0631995848. The cubic root of 75048664 is about 421.8075236133.

The spelling of 75048664 in words is "seventy-five million, forty-eight thousand, six hundred sixty-four".

Divisors: 1 2 4 8 9381083 18762166 37524332 75048664