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23130037 = 73304291
BaseRepresentation
bin101100000111…
…0111110110101
31121112010110001
41120032332311
521410130122
62143431301
7400413340
oct130167665
947463401
1023130037
1112068a37
1278b5531
134a3b018
143101457
15206d527
hex160efb5

23130037 has 4 divisors (see below), whose sum is σ = 26434336. Its totient is φ = 19825740.

The previous prime is 23130007. The next prime is 23130067. The reversal of 23130037 is 73003132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (23130007) and next prime (23130067).

It is a cyclic number.

It is not a de Polignac number, because 23130037 - 219 = 22605749 is a prime.

It is a super-2 number, since 2×231300372 = 1069997223242738, 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 = 23129996 and 23130023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652139 + ... + 1652152.

It is an arithmetic number, because the mean of its divisors is an integer number (6608584).

Almost surely, 223130037 is an apocalyptic number.

It is an amenable number.

23130037 is a deficient number, since it is larger than the sum of its proper divisors (3304299).

23130037 is an equidigital number, since it uses as much as digits as its factorization.

23130037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304298.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 23130037 is about 4809.3697092239. The cubic root of 23130037 is about 284.9216446133.

Adding to 23130037 its reverse (73003132), we get a palindrome (96133169).

The spelling of 23130037 in words is "twenty-three million, one hundred thirty thousand, thirty-seven".

Divisors: 1 7 3304291 23130037