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86988099 = 31117198161
BaseRepresentation
bin1010010111101…
…01010101000011
320001200110020110
411023311111003
5134232104344
612344242403
72104246422
oct513652503
9201613213
1086988099
11451144a0
1225170403
1315039063
14b7a52b9
1579843b9
hex52f5543

86988099 has 32 divisors (see below), whose sum is σ = 141039360. Its totient is φ = 47001600.

The previous prime is 86988079. The next prime is 86988107. The reversal of 86988099 is 99088968.

It is not a de Polignac number, because 86988099 - 28 = 86987843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (86988059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6579 + ... + 14739.

It is an arithmetic number, because the mean of its divisors is an integer number (4407480).

Almost surely, 286988099 is an apocalyptic number.

86988099 is a deficient number, since it is larger than the sum of its proper divisors (54051261).

86988099 is a wasteful number, since it uses less digits than its factorization.

86988099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211.

The product of its (nonzero) digits is 2239488, while the sum is 57.

The square root of 86988099 is about 9326.7410707063. The cubic root of 86988099 is about 443.0845566895.

The spelling of 86988099 in words is "eighty-six million, nine hundred eighty-eight thousand, ninety-nine".

Divisors: 1 3 11 17 19 33 51 57 187 209 323 561 627 969 3553 8161 10659 24483 89771 138737 155059 269313 416211 465177 1526107 1705649 2636003 4578321 5116947 7908009 28996033 86988099