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87034020 = 22356172351
BaseRepresentation
bin1010011000000…
…00100010100100
320001202210020020
411030000202210
5134240042040
612345235140
72104530333
oct514004244
9201683206
1087034020
1145145a47
1225192ab0
1315053c28
14b7b7d1a
157992cd0
hex53008a4

87034020 has 48 divisors (see below), whose sum is σ = 244194048. Its totient is φ = 23161600.

The previous prime is 87033997. The next prime is 87034037. The reversal of 87034020 is 2043078.

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, 35845 + ... + 38195.

It is an arithmetic number, because the mean of its divisors is an integer number (5087376).

Almost surely, 287034020 is an apocalyptic number.

It is an amenable number.

87034020 is an abundant number, since it is smaller than the sum of its proper divisors (157160028).

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

87034020 is a wasteful number, since it uses less digits than its factorization.

87034020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980 (or 2978 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 87034020 is about 9329.2025382666. The cubic root of 87034020 is about 443.1625110566.

Adding to 87034020 its reverse (2043078), we get a palindrome (89077098).

The spelling of 87034020 in words is "eighty-seven million, thirty-four thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 617 1234 1851 2351 2468 3085 3702 4702 6170 7053 7404 9255 9404 11755 12340 14106 18510 23510 28212 35265 37020 47020 70530 141060 1450567 2901134 4351701 5802268 7252835 8703402 14505670 17406804 21758505 29011340 43517010 87034020