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11311262051 = 293112582049
BaseRepresentation
bin10101000100011010…
…00010100101100011
31002012022010122111112
422202031002211203
5141131140341201
65110223333535
7550206066245
oct124215024543
932168118445
1011311262051
114884a04661
1222381512ab
1310b356958b
14794376095
154630750bb
hex2a2342963

11311262051 has 8 divisors (see below), whose sum is σ = 12078768000. Its totient is φ = 10568920320.

The previous prime is 11311262041. The next prime is 11311262129. The reversal of 11311262051 is 15026211311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11311262051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311262041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6290126 + ... + 6291923.

It is an arithmetic number, because the mean of its divisors is an integer number (1509846000).

Almost surely, 211311262051 is an apocalyptic number.

11311262051 is a deficient number, since it is larger than the sum of its proper divisors (767505949).

11311262051 is a wasteful number, since it uses less digits than its factorization.

11311262051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12582109.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 11311262051 its reverse (15026211311), we get a palindrome (26337473362).

The spelling of 11311262051 in words is "eleven billion, three hundred eleven million, two hundred sixty-two thousand, fifty-one".

Divisors: 1 29 31 899 12582049 364879421 390043519 11311262051