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2311422081 = 315137913463
BaseRepresentation
bin1000100111000101…
…1000000010000001
312222002100102000020
42021301120002001
514213211001311
61021205444053
7111164522613
oct21161300201
95862312006
102311422081
11a86812691
12546110629
132aab44097
1417cda2db3
15d7dcac06
hex89c58081

2311422081 has 16 divisors (see below), whose sum is σ = 3110722560. Its totient is φ = 1526590800.

The previous prime is 2311422037. The next prime is 2311422089. The reversal of 2311422081 is 1802241132.

It is not a de Polignac number, because 2311422081 - 218 = 2311159937 is a prime.

It is a super-2 number, since 2×23114220812 = 10685344073068741122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2311422089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164956 + ... + 178418.

It is an arithmetic number, because the mean of its divisors is an integer number (194420160).

Almost surely, 22311422081 is an apocalyptic number.

It is an amenable number.

2311422081 is a deficient number, since it is larger than the sum of its proper divisors (799300479).

2311422081 is a wasteful number, since it uses less digits than its factorization.

2311422081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13996.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2311422081 is about 48077.2511797420. The cubic root of 2311422081 is about 1322.1876184687.

The spelling of 2311422081 in words is "two billion, three hundred eleven million, four hundred twenty-two thousand, eighty-one".

Divisors: 1 3 151 379 453 1137 13463 40389 57229 171687 2032913 5102477 6098739 15307431 770474027 2311422081