Search a number
-
+
122605379 = 1333128493
BaseRepresentation
bin1110100111011…
…00111101000011
322112200222221222
413103230331003
5222341333004
620055505255
73016062041
oct723547503
9275628858
10122605379
1163231266
123508822b
131c529a80
14123d7391
15ab6c7be
hex74ecf43

122605379 has 8 divisors (see below), whose sum is σ = 132440112. Its totient is φ = 112828320.

The previous prime is 122605361. The next prime is 122605391. The reversal of 122605379 is 973506221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122605379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122605079) 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, 9944 + ... + 18549.

It is an arithmetic number, because the mean of its divisors is an integer number (16555014).

Almost surely, 2122605379 is an apocalyptic number.

122605379 is a deficient number, since it is larger than the sum of its proper divisors (9834733).

122605379 is a wasteful number, since it uses less digits than its factorization.

122605379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28837.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 122605379 is about 11072.7313251970. The cubic root of 122605379 is about 496.7865639002.

The spelling of 122605379 in words is "one hundred twenty-two million, six hundred five thousand, three hundred seventy-nine".

Divisors: 1 13 331 4303 28493 370409 9431183 122605379