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87368351055121 = 1915786531338477
BaseRepresentation
bin10011110111011000000111…
…100001110111110100010001
3102110100022222121022101111101
4103313120013201313310101
542422420340332230441
6505452244423344401
724255104120521333
oct2367300741676421
9373308877271441
1087368351055121
1125924789534094
1299706a3bb2101
133999a52c21c56
14178091794d453
15a179b828b231
hex4f7607877d11

87368351055121 has 16 divisors (see below), whose sum is σ = 92553803415360. Its totient is φ = 82241625810240.

The previous prime is 87368351055107. The next prime is 87368351055127. The reversal of 87368351055121 is 12155015386378.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 87368351055121 - 231 = 87366203571473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87368351055127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257952735 + ... + 258291211.

It is an arithmetic number, because the mean of its divisors is an integer number (5784612713460).

Almost surely, 287368351055121 is an apocalyptic number.

It is an amenable number.

87368351055121 is a deficient number, since it is larger than the sum of its proper divisors (5185452360239).

87368351055121 is a wasteful number, since it uses less digits than its factorization.

87368351055121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425184.

The product of its (nonzero) digits is 6048000, while the sum is 55.

The spelling of 87368351055121 in words is "eighty-seven trillion, three hundred sixty-eight billion, three hundred fifty-one million, fifty-five thousand, one hundred twenty-one".

Divisors: 1 19 157 2983 86531 338477 1644089 6431063 13585367 53140889 258121973 1009676891 29288753287 556486312453 4598334266059 87368351055121