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30900862208680 = 2352295323633751
BaseRepresentation
bin1110000011010101010101…
…11010100100101010101000
311001102002112012212120200021
413001222222322210222220
513022234431211134210
6145415354330450224
76336341112666532
oct701525272445250
9131362465776607
1030900862208680
119933a89151002
123570964293974
131431c2871c5b9
1478b877092852
15388c07d69bda
hex1c1aaaea4aa8

30900862208680 has 64 divisors (see below), whose sum is σ = 69843779913600. Its totient is φ = 12304038240000.

The previous prime is 30900862208653. The next prime is 30900862208683. The reversal of 30900862208680 is 8680226800903.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30900862208683) 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, 48441805 + ... + 49075555.

It is an arithmetic number, because the mean of its divisors is an integer number (1091309061150).

Almost surely, 230900862208680 is an apocalyptic number.

It is an amenable number.

30900862208680 is an abundant number, since it is smaller than the sum of its proper divisors (38942917704920).

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

30900862208680 is a wasteful number, since it uses less digits than its factorization.

30900862208680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639314 (or 639310 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 30900862208680 in words is "thirty trillion, nine hundred billion, eight hundred sixty-two million, two hundred eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 229 458 916 1145 1832 2290 4580 5323 9160 10646 21292 26615 42584 53230 106460 212920 633751 1218967 1267502 2437934 2535004 3168755 4875868 5070008 6094835 6337510 9751736 12189670 12675020 24379340 25350040 48758680 145128979 290257958 580515916 725644895 1161031832 1451289790 2902579580 3373456573 5805159160 6746913146 13493826292 16867282865 26987652584 33734565730 67469131460 134938262920 772521555217 1545043110434 3090086220868 3862607776085 6180172441736 7725215552170 15450431104340 30900862208680