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87010644137 = 163769117691
BaseRepresentation
bin101000100001000111…
…1010001000010101001
322022120220212200210112
41101002033101002221
52411144211103022
6103545552024105
76200130162224
oct1210217210251
9268526780715
1087010644137
11339a027085a
1214a43832035
1382886c6861
1442d5ca65bb
1523e3bdb8e2
hex14423d10a9

87010644137 has 8 divisors (see below), whose sum is σ = 87087716352. Its totient is φ = 86933604400.

The previous prime is 87010644121. The next prime is 87010644277. The reversal of 87010644137 is 73144601078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87010644137 - 24 = 87010644121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87010644094 and 87010644103.

It is not an unprimeable number, because it can be changed into a prime (87010646137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11309462 + ... + 11317152.

It is an arithmetic number, because the mean of its divisors is an integer number (10885964544).

Almost surely, 287010644137 is an apocalyptic number.

It is an amenable number.

87010644137 is a deficient number, since it is larger than the sum of its proper divisors (77072215).

87010644137 is a wasteful number, since it uses less digits than its factorization.

87010644137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16239.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 87010644137 in words is "eighty-seven billion, ten million, six hundred forty-four thousand, one hundred thirty-seven".

Divisors: 1 1637 6911 7691 11313307 12590167 53152501 87010644137