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72938527072 = 2531532814937
BaseRepresentation
bin100001111101101111…
…0011001100101100000
320222021012201002012121
41003323132121211200
52143334230331242
653301341434024
75161325151655
oct1037336314540
9228235632177
1072938527072
1128a29995a44
1212176b6b914
136b55187678
14375cdb9c2c
151d6d5b0667
hex10fb799960

72938527072 has 96 divisors (see below), whose sum is σ = 151594861824. Its totient is φ = 34496716800.

The previous prime is 72938527037. The next prime is 72938527073. The reversal of 72938527072 is 27072583927.

It is a happy number.

It is a super-3 number, since 3×729385270723 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72938527073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14771388 + ... + 14776324.

It is an arithmetic number, because the mean of its divisors is an integer number (1579113144).

Almost surely, 272938527072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72938527072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75797430912).

72938527072 is an abundant number, since it is smaller than the sum of its proper divisors (78656334752).

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

72938527072 is a wasteful number, since it uses less digits than its factorization.

72938527072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312 (or 5304 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 72938527072 in words is "seventy-two billion, nine hundred thirty-eight million, five hundred twenty-seven thousand, seventy-two".

Divisors: 1 2 4 8 16 31 32 53 62 106 124 212 248 281 424 496 562 848 992 1124 1643 1696 2248 3286 4496 4937 6572 8711 8992 9874 13144 14893 17422 19748 26288 29786 34844 39496 52576 59572 69688 78992 119144 139376 153047 157984 238288 261661 278752 306094 461683 476576 523322 612188 923366 1046644 1224376 1387297 1846732 2093288 2448752 2774594 3693464 4186576 4897504 5549188 7386928 8111491 8373152 11098376 14773856 16222982 22196752 32445964 43006207 44393504 64891928 73526741 86012414 129783856 147053482 172024828 259567712 294106964 344049656 588213928 688099312 1176427856 1376198624 2279328971 2352855712 4558657942 9117315884 18234631768 36469263536 72938527072