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14640052 = 22723127179
BaseRepresentation
bin110111110110…
…001110110100
31000112210101011
4313312032310
512221440202
61241442004
7235303240
oct67661664
930483334
1014640052
11829a319
124aa0304
13305786b
141d31420
151442bd7
hexdf63b4

14640052 has 48 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 5920992.

The previous prime is 14640037. The next prime is 14640053. The reversal of 14640052 is 25004641.

It is a super-2 number, since 2×146400522 = 428662245125408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14640053) 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, 81699 + ... + 81877.

It is an arithmetic number, because the mean of its divisors is an integer number (645120).

Almost surely, 214640052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14640052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15482880).

14640052 is an abundant number, since it is smaller than the sum of its proper divisors (16325708).

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

14640052 is a wasteful number, since it uses less digits than its factorization.

14640052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 14640052 is about 3826.2320891446. The cubic root of 14640052 is about 244.6325297757.

Adding to 14640052 its reverse (25004641), we get a palindrome (39644693).

The spelling of 14640052 in words is "fourteen million, six hundred forty thousand, fifty-two".

Divisors: 1 2 4 7 14 23 28 46 92 127 161 179 254 322 358 508 644 716 889 1253 1778 2506 2921 3556 4117 5012 5842 8234 11684 16468 20447 22733 28819 40894 45466 57638 81788 90932 115276 159131 318262 522859 636524 1045718 2091436 3660013 7320026 14640052