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13953812 = 223488453
BaseRepresentation
bin110101001110…
…101100010100
3222020221000212
4311032230110
512033010222
61215024552
7226414445
oct65165424
928227025
1013953812
117970784
12480b158
132b773c2
141bd32cc
1513596e2
hexd4eb14

13953812 has 6 divisors (see below), whose sum is σ = 24419178. Its totient is φ = 6976904.

The previous prime is 13953803. The next prime is 13953851. The reversal of 13953812 is 21835931.

13953812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7214596 + 6739216 = 2686^2 + 2596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1744223 + ... + 1744230.

It is an arithmetic number, because the mean of its divisors is an integer number (4069863).

Almost surely, 213953812 is an apocalyptic number.

It is an amenable number.

13953812 is a deficient number, since it is larger than the sum of its proper divisors (10465366).

13953812 is a wasteful number, since it uses less digits than its factorization.

13953812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488457 (or 3488455 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 13953812 is about 3735.4801565528. The cubic root of 13953812 is about 240.7488876185.

The spelling of 13953812 in words is "thirteen million, nine hundred fifty-three thousand, eight hundred twelve".

Divisors: 1 2 4 3488453 6976906 13953812