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137893395850 = 25271920735849
BaseRepresentation
bin1000000001101100010…
…1100011110110001010
3111011221000202022010021
42000123011203312022
54224401202131400
6143203010011054
712651061345150
oct2003305436612
9434830668107
10137893395850
1153531255281
1222884276a8a
1310007301172
1469619433d0
1538c0d0271a
hex201b163d8a

137893395850 has 48 divisors (see below), whose sum is σ = 308549448000. Its totient is φ = 44789431680.

The previous prime is 137893395839. The next prime is 137893395881. The reversal of 137893395850 is 58593398731.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10361275 + ... + 10374574.

It is an arithmetic number, because the mean of its divisors is an integer number (6428113500).

Almost surely, 2137893395850 is an apocalyptic number.

137893395850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137893395850 is an abundant number, since it is smaller than the sum of its proper divisors (170656052150).

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

137893395850 is a wasteful number, since it uses less digits than its factorization.

137893395850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20735887 (or 20735882 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 61.

The spelling of 137893395850 in words is "one hundred thirty-seven billion, eight hundred ninety-three million, three hundred ninety-five thousand, eight hundred fifty".

Divisors: 1 2 5 7 10 14 19 25 35 38 50 70 95 133 175 190 266 350 475 665 950 1330 3325 6650 20735849 41471698 103679245 145150943 207358490 290301886 393981131 518396225 725754715 787962262 1036792450 1451509430 1969905655 2757867917 3628773575 3939811310 5515735834 7257547150 9849528275 13789339585 19699056550 27578679170 68946697925 137893395850