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72874719252 = 223585138807
BaseRepresentation
bin100001111011110101…
…0111111100000010100
320222002202122022100000
41003313222333200110
52143221412004002
653251142051300
75156621615226
oct1036752774024
9228082568300
1072874719252
11289a6974205
1212159719b30
136b44ba646a
14375472a416
151d67ba961c
hex10f7abf814

72874719252 has 72 divisors (see below), whose sum is σ = 191077862976. Its totient is φ = 24285961728.

The previous prime is 72874719157. The next prime is 72874719289. The reversal of 72874719252 is 25291747827.

72874719252 is a `hidden beast` number, since 7 + 2 + 87 + 471 + 92 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8270233 + ... + 8279039.

It is an arithmetic number, because the mean of its divisors is an integer number (2653859208).

Almost surely, 272874719252 is an apocalyptic number.

It is an amenable number.

72874719252 is an abundant number, since it is smaller than the sum of its proper divisors (118203143724).

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

72874719252 is a wasteful number, since it uses less digits than its factorization.

72874719252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17339 (or 17325 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 54.

The spelling of 72874719252 in words is "seventy-two billion, eight hundred seventy-four million, seven hundred nineteen thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 8513 8807 17026 17614 25539 26421 34052 35228 51078 52842 76617 79263 102156 105684 153234 158526 229851 237789 306468 317052 459702 475578 689553 713367 919404 951156 1379106 1426734 2068659 2140101 2758212 2853468 4137318 4280202 8274636 8560404 74973991 149947982 224921973 299895964 449843946 674765919 899687892 1349531838 2024297757 2699063676 4048595514 6072893271 8097191028 12145786542 18218679813 24291573084 36437359626 72874719252