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23089537 = 61894253
BaseRepresentation
bin101100000010…
…1000110000001
31121110001220001
41120011012001
521402331122
62142520001
7400154302
oct130050601
947401801
1023089537
1112040569
127896001
134a25763
1430d07a9
152061527
hex1605181

23089537 has 8 divisors (see below), whose sum is σ = 23737320. Its totient is φ = 22450560.

The previous prime is 23089531. The next prime is 23089543. The reversal of 23089537 is 73598032.

It is an interprime number because it is at equal distance from previous prime (23089531) and next prime (23089543).

It can be written as a sum of positive squares in 4 ways, for example, as 2076481 + 21013056 = 1441^2 + 4584^2 .

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 23089537 - 223 = 14700929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23089496 and 23089505.

It is not an unprimeable number, because it can be changed into a prime (23089531) 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, 3303 + ... + 7555.

It is an arithmetic number, because the mean of its divisors is an integer number (2967165).

Almost surely, 223089537 is an apocalyptic number.

It is an amenable number.

23089537 is a deficient number, since it is larger than the sum of its proper divisors (647783).

23089537 is an equidigital number, since it uses as much as digits as its factorization.

23089537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 23089537 is about 4805.1573335324. The cubic root of 23089537 is about 284.7552510451.

The spelling of 23089537 in words is "twenty-three million, eighty-nine thousand, five hundred thirty-seven".

Divisors: 1 61 89 4253 5429 259433 378517 23089537