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23033121 = 321113637
BaseRepresentation
bin101011111011…
…1010100100001
31121100012111120
41113313110201
521344024441
62141402453
7366530646
oct127672441
947305446
1023033121
1112002141
127869429
134a05b87
1430b7dcd
15204e966
hex15f7521

23033121 has 8 divisors (see below), whose sum is σ = 30733824. Its totient is φ = 15343920.

The previous prime is 23033119. The next prime is 23033137. The reversal of 23033121 is 12133032.

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

It is not a de Polignac number, because 23033121 - 21 = 23033119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23033121.

It is not an unprimeable number, because it can be changed into a prime (23033191) 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, 4515 + ... + 8151.

It is an arithmetic number, because the mean of its divisors is an integer number (3841728).

Almost surely, 223033121 is an apocalyptic number.

It is an amenable number.

23033121 is a deficient number, since it is larger than the sum of its proper divisors (7700703).

23033121 is a wasteful number, since it uses less digits than its factorization.

23033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 23033121 is about 4799.2833840064. The cubic root of 23033121 is about 284.5231422475.

Adding to 23033121 its reverse (12133032), we get a palindrome (35166153).

The spelling of 23033121 in words is "twenty-three million, thirty-three thousand, one hundred twenty-one".

Divisors: 1 3 2111 3637 6333 10911 7677707 23033121