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23378311 = 116134841
BaseRepresentation
bin101100100101…
…1100110000111
31121222202000101
41121023212013
521441101221
62153024531
7402466225
oct131134607
947882011
1023378311
1112218520
1279b5147
134ac7028
143167b15
1520bbd91
hex164b987

23378311 has 8 divisors (see below), whose sum is σ = 25922448. Its totient is φ = 20904000.

The previous prime is 23378297. The next prime is 23378351. The reversal of 23378311 is 11387332.

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 23378311 - 25 = 23378279 is a prime.

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 23378311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23378351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16750 + ... + 18091.

It is an arithmetic number, because the mean of its divisors is an integer number (3240306).

Almost surely, 223378311 is an apocalyptic number.

23378311 is a deficient number, since it is larger than the sum of its proper divisors (2544137).

23378311 is a wasteful number, since it uses less digits than its factorization.

23378311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34913.

The product of its digits is 3024, while the sum is 28.

The square root of 23378311 is about 4835.1123047971. The cubic root of 23378311 is about 285.9374527019.

It can be divided in two parts, 2337 and 8311, that added together give a cube (10648 = 223).

The spelling of 23378311 in words is "twenty-three million, three hundred seventy-eight thousand, three hundred eleven".

Divisors: 1 11 61 671 34841 383251 2125301 23378311