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72316127238 = 23312412715953
BaseRepresentation
bin100001101011001100…
…0001000100000000110
320220122211112220010220
41003112120020200012
52141100412032423
653115505325210
75140026640125
oct1032630104006
9226584486126
1072316127238
112873a628813
1212022636806
136a86248244
143700481abc
151d33b1a9e3
hex10d6608806

72316127238 has 64 divisors (see below), whose sum is σ = 150495780864. Its totient is φ = 23141376000.

The previous prime is 72316127231. The next prime is 72316127239. The reversal of 72316127238 is 83272161327.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72316127238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72316127231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12144870 + ... + 12150822.

It is an arithmetic number, because the mean of its divisors is an integer number (2351496576).

Almost surely, 272316127238 is an apocalyptic number.

72316127238 is an abundant number, since it is smaller than the sum of its proper divisors (78179653626).

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

72316127238 is a wasteful number, since it uses less digits than its factorization.

72316127238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6501.

The product of its digits is 169344, while the sum is 42.

The spelling of 72316127238 in words is "seventy-two billion, three hundred sixteen million, one hundred twenty-seven thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 31 62 93 186 241 271 482 542 723 813 1446 1626 5953 7471 8401 11906 14942 16802 17859 22413 25203 35718 44826 50406 65311 130622 184543 195933 369086 391866 553629 1107258 1434673 1613263 2024641 2869346 3226526 4049282 4304019 4839789 6073923 8608038 9679578 12147846 44474863 50011153 88949726 100022306 133424589 150033459 266849178 300066918 388796383 777592766 1166389149 2332778298 12052687873 24105375746 36158063619 72316127238