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14720051381 = 719717776007
BaseRepresentation
bin11011011010110001…
…00010100010110101
31101222212101002101012
431231120202202311
5220121313121011
610432353442005
71030530241460
oct155530424265
941885332335
1014720051381
1162740a3522
122a29870305
13150784bb99
149d8d902d7
155b2466a8b
hex36d6228b5

14720051381 has 16 divisors (see below), whose sum is σ = 16920642816. Its totient is φ = 12543987456.

The previous prime is 14720051371. The next prime is 14720051413. The reversal of 14720051381 is 18315002741.

14720051381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14720051381 - 218 = 14719789237 is a prime.

It is a super-2 number, since 2×147200513812 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14720051321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2447480 + ... + 2453486.

It is an arithmetic number, because the mean of its divisors is an integer number (1057540176).

Almost surely, 214720051381 is an apocalyptic number.

It is an amenable number.

14720051381 is a deficient number, since it is larger than the sum of its proper divisors (2200591435).

14720051381 is a wasteful number, since it uses less digits than its factorization.

14720051381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7988.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 14720051381 in words is "fourteen billion, seven hundred twenty million, fifty-one thousand, three hundred eighty-one".

Divisors: 1 7 197 1379 1777 6007 12439 42049 350069 1183379 2450483 8283653 10674439 74721073 2102864483 14720051381