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23425978680 = 23335131668517
BaseRepresentation
bin10101110100010011…
…000001000100111000
32020110121010000111000
4111310103001010320
5340434022304210
614432312005000
71456342350636
oct256423010470
966417100430
1023425978680
119a31399565
124659390760
1322943c8260
1411c32d6356
15921905ac0
hex5744c1138

23425978680 has 128 divisors (see below), whose sum is σ = 84093307200. Its totient is φ = 5766391296.

The previous prime is 23425978679. The next prime is 23425978687. The reversal of 23425978680 is 8687952432.

23425978680 is a `hidden beast` number, since 2 + 3 + 42 + 597 + 8 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23425978687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 820219 + ... + 848298.

Almost surely, 223425978680 is an apocalyptic number.

23425978680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23425978680 is an abundant number, since it is smaller than the sum of its proper divisors (60667328520).

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

23425978680 is a wasteful number, since it uses less digits than its factorization.

23425978680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668550 (or 1668540 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 23425978680 in words is "twenty-three billion, four hundred twenty-five million, nine hundred seventy-eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 65 72 78 90 104 108 117 120 130 135 156 180 195 216 234 260 270 312 351 360 390 468 520 540 585 702 780 936 1080 1170 1404 1560 1755 2340 2808 3510 4680 7020 14040 1668517 3337034 5005551 6674068 8342585 10011102 13348136 15016653 16685170 20022204 21690721 25027755 30033306 33370340 40044408 43381442 45049959 50055510 60066612 65072163 66740680 75083265 86762884 90099918 100111020 108453605 120133224 130144326 150166530 173525768 180199836 195216489 200222040 216907210 225249795 260288652 300333060 325360815 360399672 390432978 433814420 450499590 520577304 585649467 600666120 650721630 780865956 867628840 900999180 976082445 1171298934 1301443260 1561731912 1801998360 1952164890 2342597868 2602886520 2928247335 3904329780 4685195736 5856494670 7808659560 11712989340 23425978680