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55968173898 = 23713222146153
BaseRepresentation
bin110100000111111101…
…101000111101001010
312100110111222211002120
4310013331220331022
51404110323031043
641413400112110
74020641425440
oct640775507512
9170414884076
1055968173898
112181063647a
12aa1b765636
13537c374580
1429cd216b90
1516c87e2983
hexd07f68f4a

55968173898 has 64 divisors (see below), whose sum is σ = 137832828672. Its totient is φ = 14753871360.

The previous prime is 55968173879. The next prime is 55968173983. The reversal of 55968173898 is 89837186955.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1189590 + ... + 1235742.

It is an arithmetic number, because the mean of its divisors is an integer number (2153637948).

Almost surely, 255968173898 is an apocalyptic number.

55968173898 is an abundant number, since it is smaller than the sum of its proper divisors (81864654774).

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

55968173898 is a wasteful number, since it uses less digits than its factorization.

55968173898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48399.

The product of its digits is 130636800, while the sum is 69.

The spelling of 55968173898 in words is "fifty-five billion, nine hundred sixty-eight million, one hundred seventy-three thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 2221 4442 6663 13326 15547 28873 31094 46153 46641 57746 86619 92306 93282 138459 173238 202111 276918 323071 404222 599989 606333 646142 969213 1199978 1212666 1799967 1938426 3599934 4199923 8399846 12599769 25199538 102505813 205011626 307517439 615034878 717540691 1332575569 1435081382 2152622073 2665151138 3997726707 4305244146 7995453414 9328028983 18656057966 27984086949 55968173898