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310413121 is a prime number
BaseRepresentation
bin10010100000001…
…000011101000001
3210122002121202021
4102200020131001
51113431204441
650445121441
710456316344
oct2240103501
9718077667
10310413121
1114a246a77
1287b59281
134c405705
142d32445b
151c3b93d1
hex12808741

310413121 has 2 divisors, whose sum is σ = 310413122. Its totient is φ = 310413120.

The previous prime is 310413119. The next prime is 310413133. The reversal of 310413121 is 121314013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223084096 + 87329025 = 14936^2 + 9345^2 .

It is a cyclic number.

It is not a de Polignac number, because 310413121 - 21 = 310413119 is a prime.

Together with 310413119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 310413095 and 310413104.

It is not a weakly prime, because it can be changed into another prime (310413161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155206560 + 155206561.

It is an arithmetic number, because the mean of its divisors is an integer number (155206561).

Almost surely, 2310413121 is an apocalyptic number.

It is an amenable number.

310413121 is a deficient number, since it is larger than the sum of its proper divisors (1).

310413121 is an equidigital number, since it uses as much as digits as its factorization.

310413121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 310413121 is about 17618.5448037004. The cubic root of 310413121 is about 677.0904527695.

Adding to 310413121 its reverse (121314013), we get a palindrome (431727134).

The spelling of 310413121 in words is "three hundred ten million, four hundred thirteen thousand, one hundred twenty-one".