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312410421 = 32169920431
BaseRepresentation
bin10010100111110…
…000000100110101
3210202212002112100
4102213300010311
51114434113141
651000012313
710512305361
oct2247600465
9722762470
10312410421
11150390634
1288761099
134c95484b
142d6c42a1
151c6610b6
hex129f0135

312410421 has 12 divisors (see below), whose sum is σ = 451547200. Its totient is φ = 208140840.

The previous prime is 312410401. The next prime is 312410429. The reversal of 312410421 is 124014213.

312410421 is a `hidden beast` number, since 3 + 1 + 241 + 0 + 421 = 666.

It is a de Polignac number, because none of the positive numbers 2k-312410421 is a prime.

It is a super-2 number, since 2×3124104212 = 195200542298794482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312410394 and 312410403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312410429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5076 + ... + 25506.

Almost surely, 2312410421 is an apocalyptic number.

It is an amenable number.

312410421 is a deficient number, since it is larger than the sum of its proper divisors (139136779).

312410421 is a wasteful number, since it uses less digits than its factorization.

312410421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22136 (or 22133 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 312410421 is about 17675.1356713322. The cubic root of 312410421 is about 678.5395566679.

Adding to 312410421 its reverse (124014213), we get a palindrome (436424634).

The spelling of 312410421 in words is "three hundred twelve million, four hundred ten thousand, four hundred twenty-one".

Divisors: 1 3 9 1699 5097 15291 20431 61293 183879 34712269 104136807 312410421