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2431253664 = 25337401993
BaseRepresentation
bin1001000011101001…
…1111110010100000
320021102211111001000
42100322133302200
514434400104124
61041130112000
7114151213050
oct22072376240
96242744030
102431253664
111038419954
1257a27b600
132c990c448
14190c77560
15e369b6c9
hex90e9fca0

2431253664 has 96 divisors (see below), whose sum is σ = 8104199040. Its totient is φ = 694642176.

The previous prime is 2431253659. The next prime is 2431253701. The reversal of 2431253664 is 4663521342.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194949 + ... + 207044.

It is an arithmetic number, because the mean of its divisors is an integer number (84418740).

Almost surely, 22431253664 is an apocalyptic number.

2431253664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2431253664 is an abundant number, since it is smaller than the sum of its proper divisors (5672945376).

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

2431253664 is a wasteful number, since it uses less digits than its factorization.

2431253664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402019 (or 402005 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 2431253664 is about 49307.7444627109. The cubic root of 2431253664 is about 1344.6525848691.

The spelling of 2431253664 in words is "two billion, four hundred thirty-one million, two hundred fifty-three thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 84 96 108 112 126 144 168 189 216 224 252 288 336 378 432 504 672 756 864 1008 1512 2016 3024 6048 401993 803986 1205979 1607972 2411958 2813951 3215944 3617937 4823916 5627902 6431888 7235874 8441853 9647832 10853811 11255804 12863776 14471748 16883706 19295664 21707622 22511608 25325559 28943496 33767412 38591328 43415244 45023216 50651118 57886992 67534824 75976677 86830488 90046432 101302236 115773984 135069648 151953354 173660976 202604472 270139296 303906708 347321952 405208944 607813416 810417888 1215626832 2431253664