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680525613120 = 26351513746831
BaseRepresentation
bin10011110011100100111…
…11001100100001000000
32102001120000000001010210
421321302133030201000
542122204024104440
61240343521354120
7100111026161253
oct11716237144100
92361500001123
10680525613120
11242677a70591
12aba82798940
134c2339446b2
1424d1ab6109a
1512a7e563a80
hex9e727cc840

680525613120 has 112 divisors (see below), whose sum is σ = 2160857703168. Its totient is φ = 181457633280.

The previous prime is 680525613109. The next prime is 680525613121. The reversal of 680525613120 is 21316525086.

It is a super-2 number, since 2×6805256131202 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680525613121) 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, 14508105 + ... + 14554935.

Almost surely, 2680525613120 is an apocalyptic number.

680525613120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680525613120 is an abundant number, since it is smaller than the sum of its proper divisors (1480332090048).

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

680525613120 is a wasteful number, since it uses less digits than its factorization.

680525613120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61988 (or 61978 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 680525613120 in words is "six hundred eighty billion, five hundred twenty-five million, six hundred thirteen thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 15137 30274 45411 46831 60548 75685 90822 93662 121096 140493 151370 181644 187324 227055 234155 242192 280986 302740 363288 374648 454110 468310 484384 561972 605480 702465 726576 749296 908220 936620 968768 1123944 1210960 1404930 1453152 1498592 1816440 1873240 2247888 2421920 2809860 2906304 2997184 3632880 3746480 4495776 4843840 5619720 7265760 7492960 8991552 11239440 14531520 14985920 22478880 44957760 708880847 1417761694 2126642541 2835523388 3544404235 4253285082 5671046776 7088808470 8506570164 10633212705 11342093552 14177616940 17013140328 21266425410 22684187104 28355233880 34026280656 42532850820 45368374208 56710467760 68052561312 85065701640 113420935520 136105122624 170131403280 226841871040 340262806560 680525613120