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23378397 = 371113257
BaseRepresentation
bin101100100101…
…1100111011101
31121222202010120
41121023213131
521441102042
62153025153
7402466410
oct131134735
947882116
1023378397
1112218599
1279b51b9
134ac7093
143167b77
1520bbdec
hex164b9dd

23378397 has 8 divisors (see below), whose sum is σ = 35624256. Its totient is φ = 13359072.

The previous prime is 23378393. The next prime is 23378423. The reversal of 23378397 is 79387332.

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

It is not a de Polignac number, because 23378397 - 22 = 23378393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23378393) 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, 556608 + ... + 556649.

It is an arithmetic number, because the mean of its divisors is an integer number (4453032).

Almost surely, 223378397 is an apocalyptic number.

It is an amenable number.

23378397 is a deficient number, since it is larger than the sum of its proper divisors (12245859).

23378397 is a wasteful number, since it uses less digits than its factorization.

23378397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113267.

The product of its digits is 190512, while the sum is 42.

The square root of 23378397 is about 4835.1211980673. The cubic root of 23378397 is about 285.9378033202.

The spelling of 23378397 in words is "twenty-three million, three hundred seventy-eight thousand, three hundred ninety-seven".

Divisors: 1 3 7 21 1113257 3339771 7792799 23378397