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1214974431 = 33112383971
BaseRepresentation
bin100100001101011…
…0000100111011111
310010200012002121000
41020122300213133
54442013140211
6320321041343
742052053336
oct11032604737
93120162530
101214974431
11573904300
1229aa86253
131649382a8
14b750ad1d
15719e7656
hex486b09df

1214974431 has 48 divisors (see below), whose sum is σ = 1985679360. Its totient is φ = 733669200.

The previous prime is 1214974429. The next prime is 1214974447. The reversal of 1214974431 is 1344794121.

1214974431 is a `hidden beast` number, since 1 + 214 + 9 + 7 + 4 + 431 = 666.

1214974431 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1214974431 - 21 = 1214974429 is a prime.

It is a super-2 number, since 2×12149744312 = 2952325735967547522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214974421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1250776 + ... + 1251746.

It is an arithmetic number, because the mean of its divisors is an integer number (41368320).

Almost surely, 21214974431 is an apocalyptic number.

1214974431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1214974431 is a deficient number, since it is larger than the sum of its proper divisors (770704929).

1214974431 is a wasteful number, since it uses less digits than its factorization.

1214974431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 1368 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1214974431 is about 34856.4833424142. The cubic root of 1214974431 is about 1067.0605060102.

The spelling of 1214974431 in words is "one billion, two hundred fourteen million, nine hundred seventy-four thousand, four hundred thirty-one".

Divisors: 1 3 9 11 27 33 99 121 297 363 383 971 1089 1149 2913 3267 3447 4213 8739 10341 10681 12639 26217 32043 37917 46343 96129 113751 117491 139029 288387 352473 371893 417087 1057419 1115679 1251261 3172257 3347037 4090823 10041111 12272469 36817407 44999053 110452221 134997159 404991477 1214974431