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13977453 = 373717989
BaseRepresentation
bin110101010100…
…011101101101
3222022010110110
4311110131231
512034234303
61215330233
7226543410
oct65243555
928263413
1013977453
117987516
124820979
132b850a9
141bdbb77
151361703
hexd5476d

13977453 has 16 divisors (see below), whose sum is σ = 21875840. Its totient is φ = 7770816.

The previous prime is 13977427. The next prime is 13977461. The reversal of 13977453 is 35477931.

It is a happy number.

13977453 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13977453 - 222 = 9783149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13977463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8218 + ... + 9771.

It is an arithmetic number, because the mean of its divisors is an integer number (1367240).

Almost surely, 213977453 is an apocalyptic number.

It is an amenable number.

13977453 is a deficient number, since it is larger than the sum of its proper divisors (7898387).

13977453 is a wasteful number, since it uses less digits than its factorization.

13977453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18036.

The product of its digits is 79380, while the sum is 39.

The square root of 13977453 is about 3738.6432030885. The cubic root of 13977453 is about 240.8847724269.

The spelling of 13977453 in words is "thirteen million, nine hundred seventy-seven thousand, four hundred fifty-three".

Divisors: 1 3 7 21 37 111 259 777 17989 53967 125923 377769 665593 1996779 4659151 13977453