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11538995 = 5131131571
BaseRepresentation
bin101100000001…
…001000110011
3210201020112012
4230001020303
510423221440
61051153135
7200036246
oct54011063
923636465
1011538995
116571466
123a457ab
132510210
14176525d
15102de65
hexb01233

11538995 has 16 divisors (see below), whose sum is σ = 15053472. Its totient is φ = 8440320.

The previous prime is 11538979. The next prime is 11538997. The reversal of 11538995 is 59983511.

11538995 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11538995 - 24 = 11538979 is a prime.

It is a super-2 number, since 2×115389952 = 266296811220050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11538997) 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, 6560 + ... + 8130.

It is an arithmetic number, because the mean of its divisors is an integer number (940842).

Almost surely, 211538995 is an apocalyptic number.

11538995 is a deficient number, since it is larger than the sum of its proper divisors (3514477).

11538995 is a wasteful number, since it uses less digits than its factorization.

11538995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702.

The product of its digits is 48600, while the sum is 41.

The square root of 11538995 is about 3396.9096249385. The cubic root of 11538995 is about 225.9727105692.

The spelling of 11538995 in words is "eleven million, five hundred thirty-eight thousand, nine hundred ninety-five".

Divisors: 1 5 13 65 113 565 1469 1571 7345 7855 20423 102115 177523 887615 2307799 11538995