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25233542243 = 71312715713907
BaseRepresentation
bin10111100000000010…
…010100110001100011
32102010120100202112122
4113200002110301203
5403134241322433
615331522214455
71552211366360
oct274002246143
972116322478
1025233542243
11a779749848
124a827b442b
1324c1a35bb0
1413153bb467
159ca455198
hex5e0094c63

25233542243 has 32 divisors (see below), whose sum is σ = 31502843904. Its totient is φ = 19680216192.

The previous prime is 25233542239. The next prime is 25233542251. The reversal of 25233542243 is 34224533252.

It is not a de Polignac number, because 25233542243 - 22 = 25233542239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25233544243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1807496 + ... + 1821402.

It is an arithmetic number, because the mean of its divisors is an integer number (984463872).

Almost surely, 225233542243 is an apocalyptic number.

25233542243 is a deficient number, since it is larger than the sum of its proper divisors (6269301661).

25233542243 is a wasteful number, since it uses less digits than its factorization.

25233542243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14211.

The product of its digits is 172800, while the sum is 35.

The spelling of 25233542243 in words is "twenty-five billion, two hundred thirty-three million, five hundred forty-two thousand, two hundred forty-three".

Divisors: 1 7 13 91 127 157 889 1099 1651 2041 11557 13907 14287 19939 97349 139573 180791 259207 1265537 1766189 1814449 2183399 12363323 15283793 22960457 28384187 160723199 198689309 277291673 1941041711 3604791749 25233542243