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312233425 = 5271784191
BaseRepresentation
bin10010100111000…
…100110111010001
3210202112002201221
4102213010313101
51114412432200
650552125041
710510640350
oct2247046721
9722462657
10312233425
1115027a659
1288696781
134c8c210a
142d679997
151c62891a
hex129c4dd1

312233425 has 12 divisors (see below), whose sum is σ = 442479616. Its totient is φ = 214102800.

The previous prime is 312233423. The next prime is 312233461. The reversal of 312233425 is 524332213.

It is not a de Polignac number, because 312233425 - 21 = 312233423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312233425.

It is not an unprimeable number, because it can be changed into a prime (312233423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 891921 + ... + 892270.

Almost surely, 2312233425 is an apocalyptic number.

312233425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312233425 is a deficient number, since it is larger than the sum of its proper divisors (130246191).

312233425 is a wasteful number, since it uses less digits than its factorization.

312233425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784208 (or 1784203 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 312233425 is about 17670.1280414150. The cubic root of 312233425 is about 678.4113903552.

Adding to 312233425 its reverse (524332213), we get a palindrome (836565638).

The spelling of 312233425 in words is "three hundred twelve million, two hundred thirty-three thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 1784191 8920955 12489337 44604775 62446685 312233425