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368381397 = 3122793799
BaseRepresentation
bin10101111101010…
…000110111010101
3221200011201021110
4111331100313111
51223301201042
6100315405233
712062122146
oct2575206725
9850151243
10368381397
11179a3a43a
12a3453819
135b420977
1436cd3acd
152251a09c
hex15f50dd5

368381397 has 4 divisors (see below), whose sum is σ = 491175200. Its totient is φ = 245587596.

The previous prime is 368381389. The next prime is 368381471. The reversal of 368381397 is 793183863.

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, and also an emirpimes, since its reverse is a distinct semiprime: 793183863 = 3264394621.

It is not a de Polignac number, because 368381397 - 23 = 368381389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368381357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61396897 + ... + 61396902.

It is an arithmetic number, because the mean of its divisors is an integer number (122793800).

Almost surely, 2368381397 is an apocalyptic number.

It is an amenable number.

368381397 is a deficient number, since it is larger than the sum of its proper divisors (122793803).

368381397 is a wasteful number, since it uses less digits than its factorization.

368381397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122793802.

The product of its digits is 653184, while the sum is 48.

The square root of 368381397 is about 19193.2643653965. The cubic root of 368381397 is about 716.8570546155.

The spelling of 368381397 in words is "three hundred sixty-eight million, three hundred eighty-one thousand, three hundred ninety-seven".

Divisors: 1 3 122793799 368381397