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25305244312 = 2321187149297
BaseRepresentation
bin10111100100010011…
…110110001010011000
32102022120021121021211
4113210103312022120
5403311120304222
615343003112504
71554042012325
oct274423661230
972276247254
1025305244312
11a806172657
124aa2812734
13250384c35a
141320b23b4c
159d18ba277
hex5e44f6298

25305244312 has 16 divisors (see below), whose sum is σ = 47449890360. Its totient is φ = 12651940224.

The previous prime is 25305244301. The next prime is 25305244313. The reversal of 25305244312 is 21344250352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25305244313) 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 3 ways as a sum of consecutive naturals, for example, 94848 + ... + 244144.

Almost surely, 225305244312 is an apocalyptic number.

It is an amenable number.

25305244312 is a deficient number, since it is larger than the sum of its proper divisors (22144646048).

25305244312 is a wasteful number, since it uses less digits than its factorization.

25305244312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170490 (or 170486 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 25305244312 its reverse (21344250352), we get a palindrome (46649494664).

The spelling of 25305244312 in words is "twenty-five billion, three hundred five million, two hundred forty-four thousand, three hundred twelve".

Divisors: 1 2 4 8 21187 42374 84748 149297 169496 298594 597188 1194376 3163155539 6326311078 12652622156 25305244312