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14681481840 = 2432520390947
BaseRepresentation
bin11011010110001010…
…11010001001110000
31101220011210112220200
431223011122021300
5220031424404330
610424455035200
71026551352024
oct155305321160
941804715820
1014681481840
11625434a673
122a1896bb00
1314cc86647c
149d3bd0384
155add98a60
hex36b15a270

14681481840 has 60 divisors (see below), whose sum is σ = 49305312264. Its totient is φ = 3915061632.

The previous prime is 14681481833. The next prime is 14681481863. The reversal of 14681481840 is 4818418641.

14681481840 is a `hidden beast` number, since 1 + 468 + 1 + 4 + 8 + 184 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10194754 + ... + 10196193.

Almost surely, 214681481840 is an apocalyptic number.

14681481840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14681481840 is an abundant number, since it is smaller than the sum of its proper divisors (34623830424).

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

14681481840 is a wasteful number, since it uses less digits than its factorization.

14681481840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20390966 (or 20390957 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The spelling of 14681481840 in words is "fourteen billion, six hundred eighty-one million, four hundred eighty-one thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 20390947 40781894 61172841 81563788 101954735 122345682 163127576 183518523 203909470 244691364 305864205 326255152 367037046 407818940 489382728 611728410 734074092 815637880 917592615 978765456 1223456820 1468148184 1631275760 1835185230 2446913640 2936296368 3670370460 4893827280 7340740920 14681481840