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1314428081 = 2357149047
BaseRepresentation
bin100111001011000…
…1001010010110001
310101121022212100112
41032112021102301
510142443144311
6334232431105
744400311561
oct11626112261
93347285315
101314428081
11614a622aa
12308248495
1317c41a1c5
14c67d8da1
157a5e028b
hex4e5894b1

1314428081 has 4 divisors (see below), whose sum is σ = 1371577152. Its totient is φ = 1257279012.

The previous prime is 1314428069. The next prime is 1314428099. The reversal of 1314428081 is 1808244131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1808244131 = 3748871463.

It is a cyclic number.

It is not a de Polignac number, because 1314428081 - 222 = 1310233777 is a prime.

It is a super-2 number, since 2×13144280812 = 3455442360242685122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1314428051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28574501 + ... + 28574546.

It is an arithmetic number, because the mean of its divisors is an integer number (342894288).

Almost surely, 21314428081 is an apocalyptic number.

It is an amenable number.

1314428081 is a deficient number, since it is larger than the sum of its proper divisors (57149071).

1314428081 is an equidigital number, since it uses as much as digits as its factorization.

1314428081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57149070.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1314428081 is about 36255.0421458864. The cubic root of 1314428081 is about 1095.4156539368.

The spelling of 1314428081 in words is "one billion, three hundred fourteen million, four hundred twenty-eight thousand, eighty-one".

Divisors: 1 23 57149047 1314428081