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72270704952 = 2333379042881
BaseRepresentation
bin100001101001110101…
…0110111000100111000
320220112200002012111000
41003103222313010320
52141002300024302
653111204005000
75135635566465
oct1032352670470
9226480065430
1072270704952
1128716a24336
121200b390760
136a79a03654
1436d841a66c
151d2eb4731c
hex10d3ab7138

72270704952 has 64 divisors (see below), whose sum is σ = 206177709600. Its totient is φ = 23439144960.

The previous prime is 72270704951. The next prime is 72270704981. The reversal of 72270704952 is 25940707227.

72270704952 is a `hidden beast` number, since 7 + 22 + 70 + 70 + 495 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 72270704898 and 72270704907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72270704951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4513449 + ... + 4529432.

Almost surely, 272270704952 is an apocalyptic number.

72270704952 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

72270704952 is an abundant number, since it is smaller than the sum of its proper divisors (133907004648).

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

72270704952 is a wasteful number, since it uses less digits than its factorization.

72270704952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042933 (or 9042923 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 72270704952 in words is "seventy-two billion, two hundred seventy million, seven hundred four thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 37 54 72 74 108 111 148 216 222 296 333 444 666 888 999 1332 1998 2664 3996 7992 9042881 18085762 27128643 36171524 54257286 72343048 81385929 108514572 162771858 217029144 244157787 325543716 334586597 488315574 651087432 669173194 976631148 1003759791 1338346388 1953262296 2007519582 2676692776 3011279373 4015039164 6022558746 8030078328 9033838119 12045117492 18067676238 24090234984 36135352476 72270704952