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87079904 = 252721247
BaseRepresentation
bin1010011000010…
…11101111100000
320001212010011122
411030023233200
5134243024104
612350231412
72105111162
oct514135740
9201763148
1087079904
114517746a
12251b5568
131506ba92
14b7ca932
1579a16be
hex530bbe0

87079904 has 12 divisors (see below), whose sum is σ = 171438624. Its totient is φ = 43539936.

The previous prime is 87079903. The next prime is 87079913. The reversal of 87079904 is 40997078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87079903) 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 as a sum of consecutive naturals, namely, 1360592 + ... + 1360655.

It is an arithmetic number, because the mean of its divisors is an integer number (14286552).

Almost surely, 287079904 is an apocalyptic number.

It is an amenable number.

87079904 is a deficient number, since it is larger than the sum of its proper divisors (84358720).

87079904 is a wasteful number, since it uses less digits than its factorization.

87079904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721257 (or 2721249 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 87079904 is about 9331.6613740534. The cubic root of 87079904 is about 443.2403752311.

The spelling of 87079904 in words is "eighty-seven million, seventy-nine thousand, nine hundred four".

Divisors: 1 2 4 8 16 32 2721247 5442494 10884988 21769976 43539952 87079904