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93157435981 = 1991999234181
BaseRepresentation
bin101011011000010011…
…1011010101001001101
322220110022011002000201
41112300213122221031
53011241300422411
6110443531053501
76505346066161
oct1266047325115
9286408132021
1093157435981
1136564a42515
121607a2a1291
138a2800a1ac
14471a3a6ca1
15265366d3c1
hex15b09daa4d

93157435981 has 8 divisors (see below), whose sum is σ = 93672800000. Its totient is φ = 92642544720.

The previous prime is 93157435979. The next prime is 93157436023. The reversal of 93157435981 is 18953475139.

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 93157435981 - 21 = 93157435979 is a prime.

It is a super-2 number, since 2×931574359812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93157439981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280711 + ... + 514891.

It is an arithmetic number, because the mean of its divisors is an integer number (11709100000).

Almost surely, 293157435981 is an apocalyptic number.

It is an amenable number.

93157435981 is a deficient number, since it is larger than the sum of its proper divisors (515364019).

93157435981 is a wasteful number, since it uses less digits than its factorization.

93157435981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236379.

The product of its digits is 4082400, while the sum is 55.

The spelling of 93157435981 in words is "ninety-three billion, one hundred fifty-seven million, four hundred thirty-five thousand, nine hundred eighty-one".

Divisors: 1 199 1999 234181 397801 46602019 468127819 93157435981