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45981234897 = 313316974111
BaseRepresentation
bin101010110100101100…
…011111011011010001
311101200111210202021220
4222310230133123101
51223132144004042
633042401235253
73215313022263
oct526454373321
9141614722256
1045981234897
1118556232384
128ab3032b29
13444a2ab000
142322ad3b33
1512e1b648ec
hexab4b1f6d1

45981234897 has 32 divisors (see below), whose sum is σ = 66470315520. Its totient is φ = 28272591360.

The previous prime is 45981234877. The next prime is 45981234907. The reversal of 45981234897 is 79843218954.

It is not a de Polignac number, because 45981234897 - 26 = 45981234833 is a prime.

It is a super-2 number, since 2×459812348972 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45981234897.

It is not an unprimeable number, because it can be changed into a prime (45981234847) 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, 11182872 + ... + 11186982.

It is an arithmetic number, because the mean of its divisors is an integer number (2077197360).

Almost surely, 245981234897 is an apocalyptic number.

It is an amenable number.

45981234897 is a deficient number, since it is larger than the sum of its proper divisors (20489080623).

45981234897 is a wasteful number, since it uses less digits than its factorization.

45981234897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850 (or 5824 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

The spelling of 45981234897 in words is "forty-five billion, nine hundred eighty-one million, two hundred thirty-four thousand, eight hundred ninety-seven".

Divisors: 1 3 13 39 169 507 1697 2197 4111 5091 6591 12333 22061 53443 66183 160329 286793 694759 860379 2084277 3728309 6976367 9031867 11184927 20929101 27095601 90692771 272078313 1179006023 3537018069 15327078299 45981234897