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15434142 = 2347229239
BaseRepresentation
bin111010111000…
…000110011110
31002001010122220
4322320012132
512422343032
61310450210
7245121333
oct72700636
932033586
1015434142
118791999
125203966
133275139
14209a98a
15154d12c
hexeb819e

15434142 has 32 divisors (see below), whose sum is σ = 31795200. Its totient is φ = 4992288.

The previous prime is 15434129. The next prime is 15434149. The reversal of 15434142 is 24143451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15434149) 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 15 ways as a sum of consecutive naturals, for example, 64459 + ... + 64697.

It is an arithmetic number, because the mean of its divisors is an integer number (993600).

Almost surely, 215434142 is an apocalyptic number.

15434142 is an abundant number, since it is smaller than the sum of its proper divisors (16361058).

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

15434142 is a wasteful number, since it uses less digits than its factorization.

15434142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520.

The product of its digits is 1920, while the sum is 24.

The square root of 15434142 is about 3928.6310592877. The cubic root of 15434142 is about 248.9779177527.

Adding to 15434142 its reverse (24143451), we get a palindrome (39577593).

It can be divided in two parts, 15434 and 142, that added together give a triangular number (15576 = T176).

The spelling of 15434142 in words is "fifteen million, four hundred thirty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 47 94 141 229 239 282 458 478 687 717 1374 1434 10763 11233 21526 22466 32289 33699 54731 64578 67398 109462 164193 328386 2572357 5144714 7717071 15434142