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87298037 = 1011137649
BaseRepresentation
bin1010011010000…
…00111111110101
320002021012101122
411031000333311
5134322014122
612355033325
72110010141
oct515007765
9202235348
1087298037
1145306342
122529b845
1315117158
14b846221
1579e6142
hex5340ff5

87298037 has 8 divisors (see below), whose sum is σ = 88954200. Its totient is φ = 85657600.

The previous prime is 87298031. The next prime is 87298067. The reversal of 87298037 is 73089278.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 454276 + 86843761 = 674^2 + 9319^2 .

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 87298037 - 24 = 87298021 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 (87298031) 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, 7589 + ... + 15237.

It is an arithmetic number, because the mean of its divisors is an integer number (11119275).

Almost surely, 287298037 is an apocalyptic number.

It is an amenable number.

87298037 is a deficient number, since it is larger than the sum of its proper divisors (1656163).

87298037 is a wasteful number, since it uses less digits than its factorization.

87298037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 87298037 is about 9343.3418539621. The cubic root of 87298037 is about 443.6101686776.

The spelling of 87298037 in words is "eighty-seven million, two hundred ninety-eight thousand, thirty-seven".

Divisors: 1 101 113 7649 11413 772549 864337 87298037