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13838454 = 2327109829
BaseRepresentation
bin110100110010…
…100001110110
3222001001210100
4310302201312
512020312304
61212334530
7225424230
oct64624166
928031710
1013838454
1178a2043
124774446
132b36a46
141ba3250
151335439
hexd32876

13838454 has 24 divisors (see below), whose sum is σ = 34266960. Its totient is φ = 3953808.

The previous prime is 13838453. The next prime is 13838483. The reversal of 13838454 is 45483831.

13838454 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×138384542 = 383005618220232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13838453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54789 + ... + 55040.

It is an arithmetic number, because the mean of its divisors is an integer number (1427790).

Almost surely, 213838454 is an apocalyptic number.

13838454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13838454 is an abundant number, since it is smaller than the sum of its proper divisors (20428506).

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

13838454 is a wasteful number, since it uses less digits than its factorization.

13838454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109844 (or 109841 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 13838454 is about 3720.0072580574. The cubic root of 13838454 is about 240.0836166976.

The spelling of 13838454 in words is "thirteen million, eight hundred thirty-eight thousand, four hundred fifty-four".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 109829 219658 329487 658974 768803 988461 1537606 1976922 2306409 4612818 6919227 13838454