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226152881 = 9715111543
BaseRepresentation
bin11010111101011…
…01000110110001
3120202112202102122
431132231012301
5430343343011
634235124025
75414160563
oct1536550661
9522482378
10226152881
11106726009
12638a3615
1337b13196
142206d333
1514cc33db
hexd7ad1b1

226152881 has 8 divisors (see below), whose sum is σ = 228783744. Its totient is φ = 223528320.

The previous prime is 226152863. The next prime is 226152893. The reversal of 226152881 is 188251622.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 226152881 - 218 = 225890737 is a prime.

It is a super-2 number, since 2×2261528812 = 102290251169200322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226152811) 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, 145796 + ... + 147338.

It is an arithmetic number, because the mean of its divisors is an integer number (28597968).

Almost surely, 2226152881 is an apocalyptic number.

It is an amenable number.

226152881 is a deficient number, since it is larger than the sum of its proper divisors (2630863).

226152881 is a wasteful number, since it uses less digits than its factorization.

226152881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151.

The product of its digits is 15360, while the sum is 35.

The square root of 226152881 is about 15038.3802651748. The cubic root of 226152881 is about 609.2572532910.

The spelling of 226152881 in words is "two hundred twenty-six million, one hundred fifty-two thousand, eight hundred eighty-one".

Divisors: 1 97 1511 1543 146567 149671 2331473 226152881