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312000425 = 521119211283
BaseRepresentation
bin10010100110001…
…011111110101001
3210202002021010022
4102212023332221
51114333003200
650543130225
710505650142
oct2246137651
9722067108
10312000425
111501305a0
12885a3975
134c840049
142d618ac9
151c5ce885
hex1298bfa9

312000425 has 48 divisors (see below), whose sum is σ = 447947520. Its totient is φ = 213192000.

The previous prime is 312000397. The next prime is 312000433. The reversal of 312000425 is 524000213.

It is a de Polignac number, because none of the positive numbers 2k-312000425 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1102334 + ... + 1102616.

It is an arithmetic number, because the mean of its divisors is an integer number (9332240).

Almost surely, 2312000425 is an apocalyptic number.

It is an amenable number.

312000425 is a deficient number, since it is larger than the sum of its proper divisors (135947095).

312000425 is a wasteful number, since it uses less digits than its factorization.

312000425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 312000425 is about 17663.5337630951. The cubic root of 312000425 is about 678.2425965653.

Adding to 312000425 its reverse (524000213), we get a palindrome (836000638).

The spelling of 312000425 in words is "three hundred twelve million, four hundred twenty-five", and thus it is an aban number.

Divisors: 1 5 11 19 25 55 95 209 211 275 283 475 1045 1055 1415 2321 3113 4009 5225 5275 5377 7075 11605 15565 20045 26885 44099 58025 59147 59713 77825 100225 134425 220495 295735 298565 656843 1102475 1134547 1478675 1492825 3284215 5672735 12480017 16421075 28363675 62400085 312000425