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87869058 = 23123711839
BaseRepresentation
bin1010011110011…
…00011010000010
320010100012200120
411033030122002
5134443302213
612415201110
72114606004
oct517143202
9203305616
1087869058
1145666362
1225516196
1315287034
14b954374
157aaa423
hex53cc682

87869058 has 16 divisors (see below), whose sum is σ = 175895040. Its totient is φ = 29263536.

The previous prime is 87869057. The next prime is 87869059. The reversal of 87869058 is 85096878.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87869057) and next prime (87869059).

It is a self number, because there is not a number n which added to its sum of digits gives 87869058.

It is not an unprimeable number, because it can be changed into a prime (87869057) 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, 1503 + ... + 13341.

It is an arithmetic number, because the mean of its divisors is an integer number (10993440).

Almost surely, 287869058 is an apocalyptic number.

87869058 is an abundant number, since it is smaller than the sum of its proper divisors (88025982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87869058 is a wasteful number, since it uses less digits than its factorization.

87869058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13081.

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 87869058 is about 9373.8496894286. The cubic root of 87869058 is about 444.5752931444.

The spelling of 87869058 in words is "eighty-seven million, eight hundred sixty-nine thousand, fifty-eight".

Divisors: 1 2 3 6 1237 2474 3711 7422 11839 23678 35517 71034 14644843 29289686 43934529 87869058