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2290123689 = 37109053509
BaseRepresentation
bin1000100010000000…
…1000001110101001
312220121021100002220
42020200020032221
514142232424224
61015125144253
7110515505310
oct21040101651
95817240086
102290123689
11a75795907
1253ab5b089
132a65c7999
1417a21b277
15d60c0279
hex888083a9

2290123689 has 8 divisors (see below), whose sum is σ = 3489712320. Its totient is φ = 1308642096.

The previous prime is 2290123687. The next prime is 2290123747. The reversal of 2290123689 is 9863210922.

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

It is not a de Polignac number, because 2290123689 - 21 = 2290123687 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2290123689.

It is not an unprimeable number, because it can be changed into a prime (2290123687) 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, 54526734 + ... + 54526775.

It is an arithmetic number, because the mean of its divisors is an integer number (436214040).

Almost surely, 22290123689 is an apocalyptic number.

It is an amenable number.

2290123689 is a deficient number, since it is larger than the sum of its proper divisors (1199588631).

2290123689 is a wasteful number, since it uses less digits than its factorization.

2290123689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109053519.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 2290123689 is about 47855.2367980768. The cubic root of 2290123689 is about 1318.1140209514.

The spelling of 2290123689 in words is "two billion, two hundred ninety million, one hundred twenty-three thousand, six hundred eighty-nine".

Divisors: 1 3 7 21 109053509 327160527 763374563 2290123689