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87913400 = 2352439567
BaseRepresentation
bin1010011110101…
…11001110111000
320010102110111212
411033113032320
5140001212100
612420142252
72115152201
oct517271670
9203373455
1087913400
1145696703
1225537988
13152a1283
14b9665a8
157ab8635
hex53d73b8

87913400 has 24 divisors (see below), whose sum is σ = 204399120. Its totient is φ = 35165280.

The previous prime is 87913387. The next prime is 87913403. The reversal of 87913400 is 431978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87913403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 219584 + ... + 219983.

It is an arithmetic number, because the mean of its divisors is an integer number (8516630).

Almost surely, 287913400 is an apocalyptic number.

It is an amenable number.

87913400 is an abundant number, since it is smaller than the sum of its proper divisors (116485720).

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

87913400 is a wasteful number, since it uses less digits than its factorization.

87913400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439583 (or 439574 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 87913400 is about 9376.2145879881. The cubic root of 87913400 is about 444.6500636533.

The spelling of 87913400 in words is "eighty-seven million, nine hundred thirteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 439567 879134 1758268 2197835 3516536 4395670 8791340 10989175 17582680 21978350 43956700 87913400