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2215980031 is a prime number
BaseRepresentation
bin1000010000010101…
…0010101111111111
312201102202110010111
42010011102233333
514014242330111
61003520050451
7105625343116
oct20405225777
95642673114
102215980031
11a37954661
1251a163a27
132941380b5
1417043ac7d
15ce826a21
hex84152bff

2215980031 has 2 divisors, whose sum is σ = 2215980032. Its totient is φ = 2215980030.

The previous prime is 2215980023. The next prime is 2215980047. The reversal of 2215980031 is 1300895122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215980031 - 23 = 2215980023 is a prime.

It is a super-2 number, since 2×22159800312 = 9821134995581521922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215979975 and 2215980002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215980071) by changing a digit.

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 as a sum of consecutive naturals, namely, 1107990015 + 1107990016.

It is an arithmetic number, because the mean of its divisors is an integer number (1107990016).

Almost surely, 22215980031 is an apocalyptic number.

2215980031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215980031 is an equidigital number, since it uses as much as digits as its factorization.

2215980031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2215980031 is about 47074.1970829031. The cubic root of 2215980031 is about 1303.7328669099.

The spelling of 2215980031 in words is "two billion, two hundred fifteen million, nine hundred eighty thousand, thirty-one".