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14631993 = 324734591
BaseRepresentation
bin110111110100…
…010000111001
31000112101022200
4313310100321
512221210433
61241340413
7235240605
oct67642071
930471280
1014631993
118294262
124a97709
133053cac
141d2c505
151440613
hexdf4439

14631993 has 12 divisors (see below), whose sum is σ = 21585408. Its totient is φ = 9546840.

The previous prime is 14631989. The next prime is 14632003. The reversal of 14631993 is 39913641.

14631993 is a `hidden beast` number, since 1 + 463 + 199 + 3 = 666.

It is not a de Polignac number, because 14631993 - 22 = 14631989 is a prime.

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 not an unprimeable number, because it can be changed into a prime (14631913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16873 + ... + 17718.

It is an arithmetic number, because the mean of its divisors is an integer number (1798784).

Almost surely, 214631993 is an apocalyptic number.

It is an amenable number.

14631993 is a deficient number, since it is larger than the sum of its proper divisors (6953415).

14631993 is a wasteful number, since it uses less digits than its factorization.

14631993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34644 (or 34641 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 14631993 is about 3825.1788193495. The cubic root of 14631993 is about 244.5876334092.

The spelling of 14631993 in words is "fourteen million, six hundred thirty-one thousand, nine hundred ninety-three".

Divisors: 1 3 9 47 141 423 34591 103773 311319 1625777 4877331 14631993