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23143011342 = 2311431813577
BaseRepresentation
bin10101100011011011…
…100101010000001110
32012201212122210021020
4111203123211100032
5334344102330332
614344243015010
71446335231163
oct254333452016
965655583236
1023143011342
1198a6698a60
12459a66a466
13224a8b2069
1411978b806a
15906b5d82c
hex5636e540e

23143011342 has 32 divisors (see below), whose sum is σ = 50611060224. Its totient is φ = 6996753600.

The previous prime is 23143011337. The next prime is 23143011349. The reversal of 23143011342 is 24311034132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143011349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378343 + ... + 435234.

It is an arithmetic number, because the mean of its divisors is an integer number (1581595632).

Almost surely, 223143011342 is an apocalyptic number.

23143011342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23143011342 is an abundant number, since it is smaller than the sum of its proper divisors (27468048882).

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

23143011342 is a wasteful number, since it uses less digits than its factorization.

23143011342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814024.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23143011342 its reverse (24311034132), we get a palindrome (47454045474).

The spelling of 23143011342 in words is "twenty-three billion, one hundred forty-three million, eleven thousand, three hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 431 862 1293 2586 4741 9482 14223 28446 813577 1627154 2440731 4881462 8949347 17898694 26848041 53696082 350651687 701303374 1051955061 2103910122 3857168557 7714337114 11571505671 23143011342