Search a number
-
+
23150637 = 33857431
BaseRepresentation
bin101100001010…
…0000000101101
31121120011201000
41120110000231
521411310022
62144110513
7400530366
oct130240055
947504630
1023150637
1112082464
127905439
134a47503
143108b6d
1520746ac
hex161402d

23150637 has 8 divisors (see below), whose sum is σ = 34297280. Its totient is φ = 15433740.

The previous prime is 23150599. The next prime is 23150639. The reversal of 23150637 is 73605132.

It is a happy number.

23150637 is a `hidden beast` number, since 23 + 1 + 5 + 0 + 637 = 666.

It is not a de Polignac number, because 23150637 - 27 = 23150509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 857431 = 23150637 / (2 + 3 + 1 + 5 + 0 + 6 + 3 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23150637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23150639) 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, 428689 + ... + 428742.

It is an arithmetic number, because the mean of its divisors is an integer number (4287160).

Almost surely, 223150637 is an apocalyptic number.

23150637 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23150637 is a deficient number, since it is larger than the sum of its proper divisors (11146643).

23150637 is an equidigital number, since it uses as much as digits as its factorization.

23150637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857440 (or 857434 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 23150637 is about 4811.5108853665. The cubic root of 23150637 is about 285.0062048511.

Subtracting from 23150637 its sum of digits (27), we obtain a triangular number (23150610 = T6804).

Adding to 23150637 its reverse (73605132), we get a palindrome (96755769).

The spelling of 23150637 in words is "twenty-three million, one hundred fifty thousand, six hundred thirty-seven".

Divisors: 1 3 9 27 857431 2572293 7716879 23150637