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69130627920 = 24325505918979
BaseRepresentation
bin100000001100010000…
…0011010101101010000
320121102211110202120200
41000120200122231100
52113034420043140
651431433135200
74665056433114
oct1003040325520
9217384422520
1069130627920
1127355489a52
121149385a500
1366992b59c3
1434bb38d744
151be9134030
hex101881ab50

69130627920 has 120 divisors (see below), whose sum is σ = 232221818400. Its totient is φ = 18430219008.

The previous prime is 69130627901. The next prime is 69130627949. The reversal of 69130627920 is 2972603196.

It is a happy number.

69130627920 is a `hidden beast` number, since 6 + 9 + 13 + 0 + 627 + 9 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×691306279202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3632991 + ... + 3651969.

It is an arithmetic number, because the mean of its divisors is an integer number (1935181820).

Almost surely, 269130627920 is an apocalyptic number.

69130627920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69130627920 is an abundant number, since it is smaller than the sum of its proper divisors (163091190480).

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

69130627920 is a wasteful number, since it uses less digits than its factorization.

69130627920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24057 (or 24048 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 69130627920 in words is "sixty-nine billion, one hundred thirty million, six hundred twenty-seven thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 5059 10118 15177 18979 20236 25295 30354 37958 40472 45531 50590 56937 60708 75885 75916 80944 91062 94895 101180 113874 121416 151770 151832 170811 182124 189790 202360 227655 227748 242832 284685 303540 303664 341622 364248 379580 404720 455310 455496 569370 607080 683244 728496 759160 854055 910620 910992 1138740 1214160 1366488 1518320 1708110 1821240 2277480 2732976 3416220 3642480 4554960 6832440 13664880 96014761 192029522 288044283 384059044 480073805 576088566 768118088 864132849 960147610 1152177132 1440221415 1536236176 1728265698 1920295220 2304354264 2880442830 3456531396 3840590440 4320664245 4608708528 5760885660 6913062792 7681180880 8641328490 11521771320 13826125584 17282656980 23043542640 34565313960 69130627920