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87796516 = 2273300673
BaseRepresentation
bin1010011101110…
…10101100100100
320010012112011211
411032322230210
5134433442031
612413441204
72114154343
oct516725444
9203175154
1087796516
1145616905
12254a0204
1315260002
14b935b5a
157a93bb1
hex53bab24

87796516 has 12 divisors (see below), whose sum is σ = 155749132. Its totient is φ = 43296768.

The previous prime is 87796493. The next prime is 87796519. The reversal of 87796516 is 61569778.

It can be written as a sum of positive squares in 2 ways, for example, as 39438400 + 48358116 = 6280^2 + 6954^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87796516.

It is not an unprimeable number, because it can be changed into a prime (87796519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150045 + ... + 150628.

Almost surely, 287796516 is an apocalyptic number.

It is an amenable number.

87796516 is a deficient number, since it is larger than the sum of its proper divisors (67952616).

87796516 is a wasteful number, since it uses less digits than its factorization.

87796516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300750 (or 300748 counting only the distinct ones).

The product of its digits is 635040, while the sum is 49.

The square root of 87796516 is about 9369.9795090491. The cubic root of 87796516 is about 444.4529168848.

The spelling of 87796516 in words is "eighty-seven million, seven hundred ninety-six thousand, five hundred sixteen".

Divisors: 1 2 4 73 146 292 300673 601346 1202692 21949129 43898258 87796516