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23145544254 = 237278726341
BaseRepresentation
bin10101100011100101…
…001111101000111110
32012202001102110202210
4111203211033220332
5334400224404004
614344413201250
71446365610600
oct254345175076
965661373683
1023145544254
1198a8068a78
12459b490226
13224b28ac21
141197d77170
15906eae089
hex56394fa3e

23145544254 has 24 divisors (see below), whose sum is σ = 53848817928. Its totient is φ = 6613012560.

The previous prime is 23145544237. The next prime is 23145544277. The reversal of 23145544254 is 45244554132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39362877 + ... + 39363464.

It is an arithmetic number, because the mean of its divisors is an integer number (2243700747).

Almost surely, 223145544254 is an apocalyptic number.

23145544254 is an abundant number, since it is smaller than the sum of its proper divisors (30703273674).

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

23145544254 is a wasteful number, since it uses less digits than its factorization.

23145544254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78726360 (or 78726353 counting only the distinct ones).

The product of its digits is 384000, while the sum is 39.

The spelling of 23145544254 in words is "twenty-three billion, one hundred forty-five million, five hundred forty-four thousand, two hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 78726341 157452682 236179023 472358046 551084387 1102168774 1653253161 3306506322 3857590709 7715181418 11572772127 23145544254