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25390169230 = 253771995441
BaseRepresentation
bin10111101001010111…
…110011110010001110
32102112111002020101011
4113221113303302032
5403444340403410
615355235235434
71556122606666
oct275127636216
972474066334
1025390169230
11a84a0a7a38
124b07148b7a
13251831529a
14132c10d1a6
159d909318a
hex5e95f3c8e

25390169230 has 32 divisors (see below), whose sum is σ = 47003276160. Its totient is φ = 9867732480.

The previous prime is 25390169197. The next prime is 25390169237. The reversal of 25390169230 is 3296109352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25390169237) 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, 218310 + ... + 313750.

It is an arithmetic number, because the mean of its divisors is an integer number (1468852380).

Almost surely, 225390169230 is an apocalyptic number.

25390169230 is a deficient number, since it is larger than the sum of its proper divisors (21613106930).

25390169230 is a wasteful number, since it uses less digits than its factorization.

25390169230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96204.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 25390169230 in words is "twenty-five billion, three hundred ninety million, one hundred sixty-nine thousand, two hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 719 1438 3595 7190 26603 53206 95441 133015 190882 266030 477205 954410 3531317 7062634 17656585 35313170 68622079 137244158 343110395 686220790 2539016923 5078033846 12695084615 25390169230