Search a number
-
+
30925799970720 = 2535172222936851
BaseRepresentation
bin1110000100000011110010…
…10100100101011110100000
311001111110220011200011001120
413002001321110211132200
513023142014243030340
6145435041045332240
76341213103323244
oct702017124453640
9131443804604046
1030925799970720
1199436159387a6
123575763a07080
1314343a10a4305
1478cb61078424
153896b73464d0
hex1c20795257a0

30925799970720 has 144 divisors (see below), whose sum is σ = 103483719708768. Its totient is φ = 7761769369600.

The previous prime is 30925799970713. The next prime is 30925799970799. The reversal of 30925799970720 is 2707999752903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111329706 + ... + 111607145.

It is an arithmetic number, because the mean of its divisors is an integer number (718636942422).

Almost surely, 230925799970720 is an apocalyptic number.

30925799970720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30925799970720 is an abundant number, since it is smaller than the sum of its proper divisors (72557919738048).

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

30925799970720 is a wasteful number, since it uses less digits than its factorization.

30925799970720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222936903 (or 222936878 counting only the distinct ones).

The product of its (nonzero) digits is 135025380, while the sum is 69.

The spelling of 30925799970720 in words is "thirty trillion, nine hundred twenty-five billion, seven hundred ninety-nine million, nine hundred seventy thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 68 80 85 96 102 120 136 160 170 204 240 255 272 289 340 408 480 510 544 578 680 816 867 1020 1156 1360 1445 1632 1734 2040 2312 2720 2890 3468 4080 4335 4624 5780 6936 8160 8670 9248 11560 13872 17340 23120 27744 34680 46240 69360 138720 222936851 445873702 668810553 891747404 1114684255 1337621106 1783494808 2229368510 2675242212 3344052765 3566989616 3789926467 4458737020 5350484424 6688105530 7133979232 7579852934 8917474040 10700968848 11369779401 13376211060 15159705868 17834948080 18949632335 21401937696 22739558802 26752422120 30319411736 35669896160 37899264670 45479117604 53504844240 56848897005 60638823472 64428749939 75798529340 90958235208 107009688480 113697794010 121277646944 128857499878 151597058680 181916470416 193286249817 227395588020 257714999756 303194117360 322143749695 363832940832 386572499634 454791176040 515429999512 606388234720 644287499390 773144999268 909582352080 966431249085 1030859999024 1288574998780 1546289998536 1819164704160 1932862498170 2061719998048 2577149997560 3092579997072 3865724996340 5154299995120 6185159994144 7731449992680 10308599990240 15462899985360 30925799970720