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97653905889 = 3798324120599
BaseRepresentation
bin101101011110010100…
…0000101100111100001
3100100001200001102011020
41122330220011213201
53044443344442024
6112510034040053
710024645334661
oct1327450054741
9310050042136
1097653905889
11384620a1951
1216b14119029
139293748c87
144a256341a1
1528182b0979
hex16bca059e1

97653905889 has 32 divisors (see below), whose sum is σ = 134002176000. Its totient is φ = 63237507840.

The previous prime is 97653905887. The next prime is 97653905917. The reversal of 97653905889 is 98850935679.

It is not a de Polignac number, because 97653905889 - 21 = 97653905887 is a prime.

It is a super-3 number, since 3×976539058893 (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (97653905887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4730412 + ... + 4751010.

It is an arithmetic number, because the mean of its divisors is an integer number (4187568000).

Almost surely, 297653905889 is an apocalyptic number.

It is an amenable number.

97653905889 is a deficient number, since it is larger than the sum of its proper divisors (36348270111).

97653905889 is a wasteful number, since it uses less digits than its factorization.

97653905889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21005.

The product of its (nonzero) digits is 146966400, while the sum is 69.

The spelling of 97653905889 in words is "ninety-seven billion, six hundred fifty-three million, nine hundred five thousand, eight hundred eighty-nine".

Divisors: 1 3 79 83 237 241 249 723 6557 19039 19671 20003 20599 57117 60009 61797 1580237 1627321 1709717 4740711 4881963 4964359 5129151 14893077 135067643 392184361 405202929 412041797 1176553083 1236125391 32551301963 97653905889