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87240802 = 2118347777
BaseRepresentation
bin1010011001100…
…11000001100010
320002011021212211
411030303001202
5134313201202
612353512334
72106351235
oct514630142
9202137784
1087240802
1145277340
12252726aa
13150c709c
14b82d41c
1579d41d7
hex5333062

87240802 has 16 divisors (see below), whose sum is σ = 144480672. Its totient is φ = 39176320.

The previous prime is 87240793. The next prime is 87240827. The reversal of 87240802 is 20804278.

It is a super-2 number, since 2×872408022 = 15221915067206408, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22063 + ... + 25714.

It is an arithmetic number, because the mean of its divisors is an integer number (9030042).

Almost surely, 287240802 is an apocalyptic number.

87240802 is a deficient number, since it is larger than the sum of its proper divisors (57239870).

87240802 is a wasteful number, since it uses less digits than its factorization.

87240802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47873.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 87240802 is about 9340.2784755060. The cubic root of 87240802 is about 443.5131997968.

The spelling of 87240802 in words is "eighty-seven million, two hundred forty thousand, eight hundred two".

Divisors: 1 2 11 22 83 166 913 1826 47777 95554 525547 1051094 3965491 7930982 43620401 87240802