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2500420680 = 2332547147779
BaseRepresentation
bin1001010100001001…
…0110010001001000
320110020222112100100
42111002112101020
520110101430210
61052040405400
7115651140132
oct22502262110
96406875310
102500420680
11107347107a
12599476860
1330b048a84
1419a120052
15e97b05c0
hex95096448

2500420680 has 96 divisors (see below), whose sum is σ = 8299324800. Its totient is φ = 652587648.

The previous prime is 2500420679. The next prime is 2500420739. The reversal of 2500420680 is 860240052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56970 + ... + 90809.

It is an arithmetic number, because the mean of its divisors is an integer number (86451300).

Almost surely, 22500420680 is an apocalyptic number.

2500420680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500420680 is an abundant number, since it is smaller than the sum of its proper divisors (5798904120).

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

2500420680 is a wasteful number, since it uses less digits than its factorization.

2500420680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147843 (or 147836 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2500420680 is about 50004.2066230432. The cubic root of 2500420680 is about 1357.2849307747.

The spelling of 2500420680 in words is "two billion, five hundred million, four hundred twenty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 47 60 72 90 94 120 141 180 188 235 282 360 376 423 470 564 705 846 940 1128 1410 1692 1880 2115 2820 3384 4230 5640 8460 16920 147779 295558 443337 591116 738895 886674 1182232 1330011 1477790 1773348 2216685 2660022 2955580 3546696 4433370 5320044 5911160 6650055 6945613 8866740 10640088 13300110 13891226 17733480 20836839 26600220 27782452 34728065 41673678 53200440 55564904 62510517 69456130 83347356 104184195 125021034 138912260 166694712 208368390 250042068 277824520 312552585 416736780 500084136 625105170 833473560 1250210340 2500420680