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312031432325 = 5231402621203
BaseRepresentation
bin1001000101001101000…
…01011100111010000101
31002211102000012010010202
410202212201130322011
520103020021313300
6355202324300245
731354300261454
oct4424641347205
91084360163122
10312031432325
111103716774a8
1250582841685
132356964a332
1411160dc2b9b
1581b3a8cad5
hex48a685ce85

312031432325 has 12 divisors (see below), whose sum is σ = 399400234368. Its totient is φ = 241572721200.

The previous prime is 312031432313. The next prime is 312031432337. The reversal of 312031432325 is 523234130213.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (312031432313) and next prime (312031432337).

It is not a de Polignac number, because 312031432325 - 24 = 312031432309 is a prime.

It is a super-2 number, since 2×3120314323252 (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 201309827 + ... + 201311376.

It is an arithmetic number, because the mean of its divisors is an integer number (33283352864).

Almost surely, 2312031432325 is an apocalyptic number.

It is an amenable number.

312031432325 is a deficient number, since it is larger than the sum of its proper divisors (87368802043).

312031432325 is a wasteful number, since it uses less digits than its factorization.

312031432325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402621244 (or 402621239 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 312031432325 its reverse (523234130213), we get a palindrome (835265562538).

The spelling of 312031432325 in words is "three hundred twelve billion, thirty-one million, four hundred thirty-two thousand, three hundred twenty-five".

Divisors: 1 5 25 31 155 775 402621203 2013106015 10065530075 12481257293 62406286465 312031432325