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2290164731 = 22346721991
BaseRepresentation
bin1000100010000001…
…0010001111111011
312220121100102101222
42020200102033323
514142240232411
61015130102255
7110516036051
oct21040221773
95817312358
102290164731
11a75813728
1253ab7a98b
132a661057a
1417a22c1d1
15d60cc4db
hex888123fb

2290164731 has 8 divisors (see below), whose sum is σ = 2305465344. Its totient is φ = 2274909480.

The previous prime is 2290164719. The next prime is 2290164743. The reversal of 2290164731 is 1374610922.

It is an interprime number because it is at equal distance from previous prime (2290164719) and next prime (2290164743).

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-2290164731 is a prime.

It is a super-2 number, since 2×22901647312 = 10489708990232604722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2290164691 and 2290164700.

It is not an unprimeable number, because it can be changed into a prime (2290164761) 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, 93146 + ... + 115136.

It is an arithmetic number, because the mean of its divisors is an integer number (288183168).

Almost surely, 22290164731 is an apocalyptic number.

2290164731 is a deficient number, since it is larger than the sum of its proper divisors (15300613).

2290164731 is a wasteful number, since it uses less digits than its factorization.

2290164731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22681.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2290164731 is about 47855.6656102493. The cubic root of 2290164731 is about 1318.1218950112.

The spelling of 2290164731 in words is "two billion, two hundred ninety million, one hundred sixty-four thousand, seven hundred thirty-one".

Divisors: 1 223 467 21991 104141 4903993 10269797 2290164731