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23125528049 = 1315721153699
BaseRepresentation
bin10101100010011000…
…111000110111110001
32012200122202112200212
4111202120320313301
5334330113344144
614342420153505
71446033513401
oct254230706761
965618675625
1023125528049
119897837558
124594838895
1322470a0310
141195446801
1590535849e
hex562638df1

23125528049 has 16 divisors (see below), whose sum is σ = 25182292800. Its totient is φ = 21109757760.

The previous prime is 23125528003. The next prime is 23125528057. The reversal of 23125528049 is 94082552132.

It is not a de Polignac number, because 23125528049 - 216 = 23125462513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23125527997 and 23125528015.

It is not an unprimeable number, because it can be changed into a prime (23125528079) 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, 403802 + ... + 457500.

It is an arithmetic number, because the mean of its divisors is an integer number (1573893300).

Almost surely, 223125528049 is an apocalyptic number.

It is an amenable number.

23125528049 is a deficient number, since it is larger than the sum of its proper divisors (2056764751).

23125528049 is a wasteful number, since it uses less digits than its factorization.

23125528049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54080.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 23125528049 in words is "twenty-three billion, one hundred twenty-five million, five hundred twenty-eight thousand, forty-nine".

Divisors: 1 13 157 211 2041 2743 33127 53699 430651 698087 8430743 11330489 109599659 147296357 1778886773 23125528049