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102387119838 = 23231275842013
BaseRepresentation
bin101111101011010111…
…1110111011011011110
3100210021112102121001120
41133112233313123132
53134142100313323
6115011435151410
710253151105363
oct1372657673336
9323245377046
10102387119838
113a470950613
1217a152a5566
1398692388a3
144d540ca46a
1529e3ab95e3
hex17d6bf76de

102387119838 has 32 divisors (see below), whose sum is σ = 215360004096. Its totient is φ = 32388114528.

The previous prime is 102387119819. The next prime is 102387119851. The reversal of 102387119838 is 838911783201.

It is a congruent number.

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, 2903481 + ... + 2938532.

It is an arithmetic number, because the mean of its divisors is an integer number (6730000128).

Almost surely, 2102387119838 is an apocalyptic number.

102387119838 is an abundant number, since it is smaller than the sum of its proper divisors (112972884258).

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

102387119838 is a wasteful number, since it uses less digits than its factorization.

102387119838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842168.

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 102387119838 in words is "one hundred two billion, three hundred eighty-seven million, one hundred nineteen thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 23 46 69 127 138 254 381 762 2921 5842 8763 17526 5842013 11684026 17526039 35052078 134366299 268732598 403098897 741935651 806197794 1483871302 2225806953 4451613906 17064519973 34129039946 51193559919 102387119838