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72974377748 = 2232515611687
BaseRepresentation
bin100001111110110011…
…1001010001100010100
320222100201011111002102
41003331213022030110
52143422420041443
653305102101232
75162241655616
oct1037547121424
9228321144072
1072974377748
1128a481520a8
1212186b7a818
136b5c72a69c
143763a6cdb6
151d717e2cb8
hex10fd9ca314

72974377748 has 12 divisors (see below), whose sum is σ = 127744465632. Its totient is φ = 36475959000.

The previous prime is 72974377741. The next prime is 72974377807. The reversal of 72974377748 is 84777347927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72974377741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2792840 + ... + 2818847.

It is an arithmetic number, because the mean of its divisors is an integer number (10645372136).

Almost surely, 272974377748 is an apocalyptic number.

It is an amenable number.

72974377748 is a deficient number, since it is larger than the sum of its proper divisors (54770087884).

72974377748 is a wasteful number, since it uses less digits than its factorization.

72974377748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5614942 (or 5614940 counting only the distinct ones).

The product of its digits is 116169984, while the sum is 65.

The spelling of 72974377748 in words is "seventy-two billion, nine hundred seventy-four million, three hundred seventy-seven thousand, seven hundred forty-eight".

Divisors: 1 2 4 3251 6502 13004 5611687 11223374 22446748 18243594437 36487188874 72974377748