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87693727 = 1143397467
BaseRepresentation
bin1010011101000…
…01100110011111
320010000022011211
411032201212133
5134422144402
612411325251
72113245562
oct516414637
9203008154
1087693727
1145556660
1225450827
13152252a4
14b90a4d9
157a734d7
hex53a199f

87693727 has 16 divisors (see below), whose sum is σ = 98347392. Its totient is φ = 77505120.

The previous prime is 87693707. The next prime is 87693743. The reversal of 87693727 is 72739678.

It is a de Polignac number, because none of the positive numbers 2k-87693727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87693707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187548 + ... + 188014.

It is an arithmetic number, because the mean of its divisors is an integer number (6146712).

Almost surely, 287693727 is an apocalyptic number.

87693727 is a deficient number, since it is larger than the sum of its proper divisors (10653665).

87693727 is a wasteful number, since it uses less digits than its factorization.

87693727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its digits is 889056, while the sum is 49.

The square root of 87693727 is about 9364.4928853622. The cubic root of 87693727 is about 444.2793993266.

The spelling of 87693727 in words is "eighty-seven million, six hundred ninety-three thousand, seven hundred twenty-seven".

Divisors: 1 11 43 397 467 473 4367 5137 17071 20081 185399 187781 220891 2039389 7972157 87693727