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87704053 = 3110972579
BaseRepresentation
bin1010011101001…
…00000111110101
320010000211100021
411032210013311
5134423012203
612411445141
72113320643
oct516440765
9203024307
1087704053
1145563398
12254567b1
1315229bb8
14b910193
157a765bd
hex53a41f5

87704053 has 8 divisors (see below), whose sum is σ = 90650880. Its totient is φ = 84764640.

The previous prime is 87704051. The next prime is 87704081. The reversal of 87704053 is 35040778.

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

It is a cyclic number.

It is not a de Polignac number, because 87704053 - 21 = 87704051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87704051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32718 + ... + 35296.

It is an arithmetic number, because the mean of its divisors is an integer number (11331360).

Almost surely, 287704053 is an apocalyptic number.

It is an amenable number.

87704053 is a deficient number, since it is larger than the sum of its proper divisors (2946827).

87704053 is a wasteful number, since it uses less digits than its factorization.

87704053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 87704053 is about 9365.0442070500. The cubic root of 87704053 is about 444.2968367161.

The spelling of 87704053 in words is "eighty-seven million, seven hundred four thousand, fifty-three".

Divisors: 1 31 1097 2579 34007 79949 2829163 87704053