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679070705472 = 26321769349541
BaseRepresentation
bin10011110000110111100…
…01001010011101000000
32101220210121100002001100
421320123301022131000
542111214100033342
61235543305534400
7100030001521065
oct11703361123500
92356717302040
10679070705472
11241aa0789975
12ab7374a4400
134c0613acab3
1424c1d838c6c
15129e6974e4c
hex9e1bc4a740

679070705472 has 84 divisors (see below), whose sum is σ = 2060929689156. Its totient is φ = 213041786880.

The previous prime is 679070705459. The next prime is 679070705477. The reversal of 679070705472 is 274507070976.

679070705472 is a `hidden beast` number, since 6 + 7 + 90 + 7 + 0 + 7 + 0 + 547 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 586547666496 + 92523038976 = 765864^2 + 304176^2 .

It is a super-2 number, since 2×6790707054722 (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679070705477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34664979 + ... + 34684562.

Almost surely, 2679070705472 is an apocalyptic number.

It is an amenable number.

679070705472 is an abundant number, since it is smaller than the sum of its proper divisors (1381858983684).

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

679070705472 is a wasteful number, since it uses less digits than its factorization.

679070705472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69349576 (or 69349563 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 54.

The spelling of 679070705472 in words is "six hundred seventy-nine billion, seventy million, seven hundred five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 136 144 153 192 204 272 288 306 408 544 576 612 816 1088 1224 1632 2448 3264 4896 9792 69349541 138699082 208048623 277398164 416097246 554796328 624145869 832194492 1109592656 1178942197 1248291738 1664388984 2219185312 2357884394 2496583476 3328777968 3536826591 4438370624 4715768788 4993166952 6657555936 7073653182 9431537576 9986333904 10610479773 13315111872 14147306364 18863075152 19972667808 21220959546 28294612728 37726150304 39945335616 42441919092 56589225456 75452300608 84883838184 113178450912 169767676368 226356901824 339535352736 679070705472