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87299802 = 23329107521
BaseRepresentation
bin1010011010000…
…01011011011010
320002021021211000
411031001123122
5134322043202
612355045430
72110015242
oct515013332
9202237730
1087299802
11453076a7
12252a0876
1315117bb5
14b846b22
1579e691c
hex53416da

87299802 has 64 divisors (see below), whose sum is σ = 202953600. Its totient is φ = 27780480.

The previous prime is 87299791. The next prime is 87299809. The reversal of 87299802 is 20899278.

It is not an unprimeable number, because it can be changed into a prime (87299809) 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 in 31 ways as a sum of consecutive naturals, for example, 167302 + ... + 167822.

It is an arithmetic number, because the mean of its divisors is an integer number (3171150).

Almost surely, 287299802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87299802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101476800).

87299802 is an abundant number, since it is smaller than the sum of its proper divisors (115653798).

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

87299802 is a wasteful number, since it uses less digits than its factorization.

87299802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 87299802 is about 9343.4363057710. The cubic root of 87299802 is about 443.6131583082.

The spelling of 87299802 in words is "eighty-seven million, two hundred ninety-nine thousand, eight hundred two".

Divisors: 1 2 3 6 9 18 27 29 54 58 87 107 174 214 261 321 521 522 642 783 963 1042 1563 1566 1926 2889 3103 3126 4689 5778 6206 9309 9378 14067 15109 18618 27927 28134 30218 45327 55747 55854 83781 90654 111494 135981 167241 167562 271962 334482 407943 501723 815886 1003446 1505169 1616663 3010338 3233326 4849989 9699978 14549967 29099934 43649901 87299802