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14912381 = 111638317
BaseRepresentation
bin111000111000…
…101101111101
31001001121221102
4320320231331
512304144011
61251342445
7240516221
oct70705575
931047842
1014912381
118465990
124bb1a25
1331217c3
141da2781
15149873b
hexe38b7d

14912381 has 8 divisors (see below), whose sum is σ = 16369824. Its totient is φ = 13471920.

The previous prime is 14912377. The next prime is 14912407. The reversal of 14912381 is 18321941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14912381 - 22 = 14912377 is a prime.

It is a super-2 number, since 2×149123812 = 444758214178322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14912371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366 + ... + 5951.

It is an arithmetic number, because the mean of its divisors is an integer number (2046228).

Almost surely, 214912381 is an apocalyptic number.

14912381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14912381 is a deficient number, since it is larger than the sum of its proper divisors (1457443).

14912381 is a wasteful number, since it uses less digits than its factorization.

14912381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491.

The product of its digits is 1728, while the sum is 29.

The square root of 14912381 is about 3861.6552150600. The cubic root of 14912381 is about 246.1400759950.

The spelling of 14912381 in words is "fourteen million, nine hundred twelve thousand, three hundred eighty-one".

Divisors: 1 11 163 1793 8317 91487 1355671 14912381