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13720833454 = 210963119973
BaseRepresentation
bin11001100011101001…
…10100110110101110
31022102020011120001211
430301310310312232
5211100013132304
610145301025034
7664005105616
oct146164646656
938366146054
1013720833454
115901064289
1227ab0b517a
1313a8826983
149423a7a46
1555488c204
hex331d34dae

13720833454 has 16 divisors (see below), whose sum is σ = 20775443040. Its totient is φ = 6795718560.

The previous prime is 13720833437. The next prime is 13720833463. The reversal of 13720833454 is 45433802731.

It is a super-2 number, since 2×137208334542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1370812 + ... + 1380784.

It is an arithmetic number, because the mean of its divisors is an integer number (1298465190).

Almost surely, 213720833454 is an apocalyptic number.

13720833454 is a deficient number, since it is larger than the sum of its proper divisors (7054609586).

13720833454 is a wasteful number, since it uses less digits than its factorization.

13720833454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16395.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 13720833454 in words is "thirteen billion, seven hundred twenty million, eight hundred thirty-three thousand, four hundred fifty-four".

Divisors: 1 2 109 218 6311 9973 12622 19946 687899 1087057 1375798 2174114 62939603 125879206 6860416727 13720833454