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87076380 = 22351785369
BaseRepresentation
bin1010011000010…
…10111000011100
320001211221100010
411030022320130
5134242421010
612350203220
72105064666
oct514127034
9201757303
1087076380
1145174856
12251b3510
131506a2b1
14b7c9536
1579a0620
hex530ae1c

87076380 has 48 divisors (see below), whose sum is σ = 258158880. Its totient is φ = 21854208.

The previous prime is 87076369. The next prime is 87076421. The reversal of 87076380 is 8367078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41665 + ... + 43704.

It is an arithmetic number, because the mean of its divisors is an integer number (5378310).

Almost surely, 287076380 is an apocalyptic number.

It is an amenable number.

87076380 is an abundant number, since it is smaller than the sum of its proper divisors (171082500).

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

87076380 is a wasteful number, since it uses less digits than its factorization.

87076380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85398 (or 85396 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 87076380 is about 9331.4725526039. The cubic root of 87076380 is about 443.2343960476.

The spelling of 87076380 in words is "eighty-seven million, seventy-six thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 85369 170738 256107 341476 426845 512214 853690 1024428 1280535 1451273 1707380 2561070 2902546 4353819 5122140 5805092 7256365 8707638 14512730 17415276 21769095 29025460 43538190 87076380