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13976020 = 2251936779
BaseRepresentation
bin110101010100…
…000111010100
3222022001111101
4311110013110
512034213040
61215315444
7226536262
oct65240724
928261441
1013976020
117986433
12481bb84
132b84546
141bdb432
15136109a
hexd541d4

13976020 has 24 divisors (see below), whose sum is σ = 30895200. Its totient is φ = 5296032.

The previous prime is 13975993. The next prime is 13976021. The reversal of 13976020 is 2067931.

It is a self number, because there is not a number n which added to its sum of digits gives 13976020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13976021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18010 + ... + 18769.

It is an arithmetic number, because the mean of its divisors is an integer number (1287300).

Almost surely, 213976020 is an apocalyptic number.

13976020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13976020 is an abundant number, since it is smaller than the sum of its proper divisors (16919180).

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

13976020 is a wasteful number, since it uses less digits than its factorization.

13976020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36807 (or 36805 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13976020 is about 3738.4515511104. The cubic root of 13976020 is about 240.8765401288.

The spelling of 13976020 in words is "thirteen million, nine hundred seventy-six thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 36779 73558 147116 183895 367790 698801 735580 1397602 2795204 3494005 6988010 13976020