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45664687940 = 22517431130987
BaseRepresentation
bin101010100001110100…
…111101011101000100
311100212110011111111112
4222201310331131010
51222010130003230
632551132424152
73204420304664
oct524164753504
9140773144445
1045664687940
1118403586a23
128a25018058
1343c9838711
1422d2a541a4
1512c3e87d95
hexaa1d3d744

45664687940 has 24 divisors (see below), whose sum is σ = 95902078272. Its totient is φ = 18264687840.

The previous prime is 45664687883. The next prime is 45664687961. The reversal of 45664687940 is 4978646654.

45664687940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 45664687940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283127 + ... + 414113.

It is an arithmetic number, because the mean of its divisors is an integer number (3995919928).

Almost surely, 245664687940 is an apocalyptic number.

It is an amenable number.

45664687940 is an abundant number, since it is smaller than the sum of its proper divisors (50237390332).

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

45664687940 is a wasteful number, since it uses less digits than its factorization.

45664687940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148427 (or 148425 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 59.

The spelling of 45664687940 in words is "forty-five billion, six hundred sixty-four million, six hundred eighty-seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 17431 34862 69724 87155 130987 174310 261974 348620 523948 654935 1309870 2619740 2283234397 4566468794 9132937588 11416171985 22832343970 45664687940