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18952502016 = 28373525391
BaseRepresentation
bin10001101001101010…
…000011101100000000
31210220211110212011010
4101221222003230000
5302303320031031
612412345520520
71240442415630
oct215152035400
953824425133
1018952502016
118046214308
12380b1a3140
131a3067a146
14cbb1326c0
1575dd06246
hex469a83b00

18952502016 has 72 divisors (see below), whose sum is σ = 57647209984. Its totient is φ = 5414999040.

The previous prime is 18952501991. The next prime is 18952502069. The reversal of 18952502016 is 61020525981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757320 + ... + 1768071.

Almost surely, 218952502016 is an apocalyptic number.

18952502016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18952502016 is an abundant number, since it is smaller than the sum of its proper divisors (38694707968).

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

18952502016 is an equidigital number, since it uses as much as digits as its factorization.

18952502016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525417 (or 3525403 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 18952502016 in words is "eighteen billion, nine hundred fifty-two million, five hundred two thousand, sixteen".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 672 768 896 1344 1792 2688 5376 3525391 7050782 10576173 14101564 21152346 24677737 28203128 42304692 49355474 56406256 74033211 84609384 98710948 112812512 148066422 169218768 197421896 225625024 296132844 338437536 394843792 451250048 592265688 676875072 789687584 902500096 1184531376 1353750144 1579375168 2369062752 2707500288 3158750336 4738125504 6317500672 9476251008 18952502016