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226155139 = 7241112571
BaseRepresentation
bin11010111101011…
…01101010000011
3120202112212112021
431132231222003
5430343431024
634235142311
75414200300
oct1536555203
9522485467
10226155139
11106727781
12638a4997
1337b14212
14220700a7
1514cc3de4
hexd7ada83

226155139 has 12 divisors (see below), whose sum is σ = 269497368. Its totient is φ = 189117600.

The previous prime is 226155109. The next prime is 226155151. The reversal of 226155139 is 931551622.

It is not a de Polignac number, because 226155139 - 27 = 226155011 is a prime.

It is a super-2 number, since 2×2261551392 = 102292293792218642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (226155109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54277 + ... + 58294.

It is an arithmetic number, because the mean of its divisors is an integer number (22458114).

Almost surely, 2226155139 is an apocalyptic number.

226155139 is a deficient number, since it is larger than the sum of its proper divisors (43342229).

226155139 is a wasteful number, since it uses less digits than its factorization.

226155139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112626 (or 112619 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 226155139 is about 15038.4553395620. The cubic root of 226155139 is about 609.2592809729.

The spelling of 226155139 in words is "two hundred twenty-six million, one hundred fifty-five thousand, one hundred thirty-nine".

Divisors: 1 7 41 49 287 2009 112571 787997 4615411 5515979 32307877 226155139