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6720872872382 = 2193145841124459
BaseRepresentation
bin110000111001101001100…
…1111010111100110111110
3212210111202012000201200122
41201303103033113212332
51340103321423404012
622143305410254542
71262365331554064
oct141632317274676
925714665021618
106720872872382
112161340583aa9
12906672887452
13399a10c905a6
141934132b4034
15b9c5a729e72
hex61cd33d79be

6720872872382 has 32 divisors (see below), whose sum is σ = 10954551014400. Its totient is φ = 3080783548800.

The previous prime is 6720872872381. The next prime is 6720872872423. The reversal of 6720872872382 is 2832782780276.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720872872381) 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, 53938469 + ... + 54062927.

It is an arithmetic number, because the mean of its divisors is an integer number (342329719200).

Almost surely, 26720872872382 is an apocalyptic number.

6720872872382 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6720872872382 is a deficient number, since it is larger than the sum of its proper divisors (4233678142018).

6720872872382 is a wasteful number, since it uses less digits than its factorization.

6720872872382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170352.

The product of its (nonzero) digits is 50577408, while the sum is 62.

The spelling of 6720872872382 in words is "six trillion, seven hundred twenty billion, eight hundred seventy-two million, eight hundred seventy-two thousand, three hundred eighty-two".

Divisors: 1 2 19 31 38 62 589 1178 45841 91682 124459 248918 870979 1421071 1741958 2364721 2842142 3858229 4729442 7716458 27000349 54000698 73306351 146612702 5705325019 11410650038 108401175361 176865075589 216802350722 353730151178 3360436436191 6720872872382