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87060129 = 31323711367
BaseRepresentation
bin1010011000001…
…10111010100001
320001211010001020
411030012322201
5134241411004
612350000053
72104666422
oct514067241
9201733036
1087060129
1145163622
12251a6029
1315062a90
14b7c3649
15799a8d9
hex5306ea1

87060129 has 32 divisors (see below), whose sum is σ = 132378624. Its totient is φ = 50487360.

The previous prime is 87060091. The next prime is 87060137. The reversal of 87060129 is 92106078.

It is a de Polignac number, because none of the positive numbers 2k-87060129 is a prime.

It is a super-2 number, since 2×870601292 = 15158932122993282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87060129.

It is not an unprimeable number, because it can be changed into a prime (87060199) 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, 63004 + ... + 64370.

It is an arithmetic number, because the mean of its divisors is an integer number (4136832).

Almost surely, 287060129 is an apocalyptic number.

It is an amenable number.

87060129 is a deficient number, since it is larger than the sum of its proper divisors (45318495).

87060129 is a wasteful number, since it uses less digits than its factorization.

87060129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 87060129 is about 9330.6017490835. The cubic root of 87060129 is about 443.2068208303.

The spelling of 87060129 in words is "eighty-seven million, sixty thousand, one hundred twenty-nine".

Divisors: 1 3 13 23 39 69 71 213 299 897 923 1367 1633 2769 4101 4899 17771 21229 31441 53313 63687 94323 97057 291171 408733 1226199 1261741 2232311 3785223 6696933 29020043 87060129