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86871150135 = 3857211173
BaseRepresentation
bin101000011100111101…
…1001000111000110111
322022020012101200000000
41100321323020320313
52410403003301020
6103524050122343
76163514410200
oct1207173107067
9268205350000
1086871150135
1133929554960
1214a04b803b3
138265835923
1442c15545a7
1523d6835090
hex1439ec8e37

86871150135 has 432 divisors, whose sum is σ = 210822562080. Its totient is φ = 33978631680.

The previous prime is 86871150133. The next prime is 86871150137. The reversal of 86871150135 is 53105117868.

It is an interprime number because it is at equal distance from previous prime (86871150133) and next prime (86871150137).

It is not a de Polignac number, because 86871150135 - 21 = 86871150133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86871150133) by changing a digit.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 5110067647 + ... + 5110067663.

It is an arithmetic number, because the mean of its divisors is an integer number (488015190).

Almost surely, 286871150135 is an apocalyptic number.

86871150135 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86871150135 is an abundant number, since it is smaller than the sum of its proper divisors (123951411945).

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

86871150135 is an frugal number, since it uses more digits than its factorization.

86871150135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 86871150135 in words is "eighty-six billion, eight hundred seventy-one million, one hundred fifty thousand, one hundred thirty-five".