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2670770681 is a prime number
BaseRepresentation
bin1001111100110000…
…1011100111111001
320220010112012121122
42133030023213321
520432204130211
61121003515025
7123120114305
oct23714134771
96803465548
102670770681
1111506425a7
12626528a75
133374214a7
141b49c4d05
1510970e6db
hex9f30b9f9

2670770681 has 2 divisors, whose sum is σ = 2670770682. Its totient is φ = 2670770680.

The previous prime is 2670770591. The next prime is 2670770699. The reversal of 2670770681 is 1860770762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2182758400 + 488012281 = 46720^2 + 22091^2 .

It is a cyclic number.

It is not a de Polignac number, because 2670770681 - 226 = 2603661817 is a prime.

It is a super-2 number, since 2×26707706812 = 14266032060978407522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2670770581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1335385340 + 1335385341.

It is an arithmetic number, because the mean of its divisors is an integer number (1335385341).

Almost surely, 22670770681 is an apocalyptic number.

It is an amenable number.

2670770681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2670770681 is an equidigital number, since it uses as much as digits as its factorization.

2670770681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 2670770681 is about 51679.4996202556. The cubic root of 2670770681 is about 1387.4335752201.

The spelling of 2670770681 in words is "two billion, six hundred seventy million, seven hundred seventy thousand, six hundred eighty-one".