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86950540 = 22510342209
BaseRepresentation
bin1010010111011…
…00001010001100
320001121112201101
411023230022030
5134224404130
612343352444
72104032055
oct513541214
9201545641
1086950540
1145099256
1225152724
1315024c31
14b79572c
1579781ca
hex52ec28c

86950540 has 24 divisors (see below), whose sum is σ = 184373280. Its totient is φ = 34441728.

The previous prime is 86950471. The next prime is 86950541. The reversal of 86950540 is 4505968.

It is a self number, because there is not a number n which added to its sum of digits gives 86950540.

It is not an unprimeable number, because it can be changed into a prime (86950541) 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, 19045 + ... + 23164.

It is an arithmetic number, because the mean of its divisors is an integer number (7682220).

Almost surely, 286950540 is an apocalyptic number.

It is an amenable number.

86950540 is an abundant number, since it is smaller than the sum of its proper divisors (97422740).

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

86950540 is a wasteful number, since it uses less digits than its factorization.

86950540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42321 (or 42319 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 86950540 is about 9324.7273418583. The cubic root of 86950540 is about 443.0207770507.

The spelling of 86950540 in words is "eighty-six million, nine hundred fifty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 42209 84418 168836 211045 422090 844180 4347527 8695054 17390108 21737635 43475270 86950540