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226315761 = 3721539563
BaseRepresentation
bin11010111110101…
…00110111110001
3120202212000212020
431133110313301
5430414101021
634242422053
75415436500
oct1537246761
9522760766
10226315761
11106827421
1263961929
1337b6c369
14220b2837
1514d067c6
hexd7d4df1

226315761 has 12 divisors (see below), whose sum is σ = 351020592. Its totient is φ = 129323208.

The previous prime is 226315741. The next prime is 226315811. The reversal of 226315761 is 167513622.

It is not a de Polignac number, because 226315761 - 25 = 226315729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (226315711) 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, 769635 + ... + 769928.

It is an arithmetic number, because the mean of its divisors is an integer number (29251716).

Almost surely, 2226315761 is an apocalyptic number.

226315761 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

226315761 is a deficient number, since it is larger than the sum of its proper divisors (124704831).

226315761 is a wasteful number, since it uses less digits than its factorization.

226315761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539580 (or 1539573 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 226315761 is about 15043.7947672786. The cubic root of 226315761 is about 609.4034847645.

The spelling of 226315761 in words is "two hundred twenty-six million, three hundred fifteen thousand, seven hundred sixty-one".

Divisors: 1 3 7 21 49 147 1539563 4618689 10776941 32330823 75438587 226315761