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97890463457 = 231157117417
BaseRepresentation
bin101101100101010111…
…0011110111011100001
3100100200011011210010122
41123022232132323201
53100434424312312
6112545324210025
710033550132123
oct1331256367341
9310604153118
1097890463457
1138573684076
1216b7b399915
139300762c77
144a48c11213
15282de3bb72
hex16cab9eee1

97890463457 has 8 divisors (see below), whose sum is σ = 97963176192. Its totient is φ = 97817781600.

The previous prime is 97890463427. The next prime is 97890463471. The reversal of 97890463457 is 75436409879.

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 97890463457 - 26 = 97890463393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97890463457.

It is not an unprimeable number, because it can be changed into a prime (97890463427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13194413 + ... + 13201829.

It is an arithmetic number, because the mean of its divisors is an integer number (12245397024).

Almost surely, 297890463457 is an apocalyptic number.

It is an amenable number.

97890463457 is a deficient number, since it is larger than the sum of its proper divisors (72712735).

97890463457 is a wasteful number, since it uses less digits than its factorization.

97890463457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15439.

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 97890463457 in words is "ninety-seven billion, eight hundred ninety million, four hundred sixty-three thousand, four hundred fifty-seven".

Divisors: 1 2311 5711 7417 13198121 17140687 42358487 97890463457