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72050532168 = 23319158005553
BaseRepresentation
bin100001100011010001…
…0111101111101001000
320212222022210021012110
41003012202331331020
52140024414012133
653033300542320
75130323263356
oct1030642757510
9225868707173
1072050532168
112861371325a
1211b696b19a0
136a432053b4
1436b70a67d6
151d1a655c63
hex10c68bdf48

72050532168 has 32 divisors (see below), whose sum is σ = 189606664800. Its totient is φ = 22752799488.

The previous prime is 72050532167. The next prime is 72050532193. The reversal of 72050532168 is 86123505027.

It is not an unprimeable number, because it can be changed into a prime (72050532167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79002321 + ... + 79003232.

It is an arithmetic number, because the mean of its divisors is an integer number (5925208275).

Almost surely, 272050532168 is an apocalyptic number.

It is an amenable number.

72050532168 is an abundant number, since it is smaller than the sum of its proper divisors (117556132632).

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

72050532168 is a wasteful number, since it uses less digits than its factorization.

72050532168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158005581 (or 158005577 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 72050532168 in words is "seventy-two billion, fifty million, five hundred thirty-two thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 158005553 316011106 474016659 632022212 948033318 1264044424 1896066636 3002105507 3792133272 6004211014 9006316521 12008422028 18012633042 24016844056 36025266084 72050532168