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368148381 = 3122716127
BaseRepresentation
bin10101111100010…
…111111110011101
3221122201212122020
4111330113332131
51223221222011
6100310410353
712060131616
oct2574277635
9848655566
10368148381
111798a0367
12a33609b9
135b36b8a3
1436c72c0d
15224c1006
hex15f17f9d

368148381 has 4 divisors (see below), whose sum is σ = 490864512. Its totient is φ = 245432252.

The previous prime is 368148353. The next prime is 368148401. The reversal of 368148381 is 183841863.

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.

It is a cyclic number.

It is not a de Polignac number, because 368148381 - 210 = 368147357 is a prime.

It is a super-2 number, since 2×3681483812 = 271066460865842322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368148331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61358061 + ... + 61358066.

It is an arithmetic number, because the mean of its divisors is an integer number (122716128).

Almost surely, 2368148381 is an apocalyptic number.

It is an amenable number.

368148381 is a deficient number, since it is larger than the sum of its proper divisors (122716131).

368148381 is a wasteful number, since it uses less digits than its factorization.

368148381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122716130.

The product of its digits is 110592, while the sum is 42.

The square root of 368148381 is about 19187.1931506409. The cubic root of 368148381 is about 716.7058757948.

The spelling of 368148381 in words is "three hundred sixty-eight million, one hundred forty-eight thousand, three hundred eighty-one".

Divisors: 1 3 122716127 368148381