Search a number
-
+
404072107 = 1921266953
BaseRepresentation
bin11000000101011…
…010011010101011
31001011022222201121
4120011122122223
51311420301412
6104032400111
713004361535
oct3005323253
91034288647
10404072107
111980a739a
12b33a6037
1365938c2a
143b944855
152571a107
hex1815a6ab

404072107 has 4 divisors (see below), whose sum is σ = 425339080. Its totient is φ = 382805136.

The previous prime is 404072101. The next prime is 404072173. The reversal of 404072107 is 701270404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404072107 - 223 = 395683499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404072101) 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, 10633458 + ... + 10633495.

It is an arithmetic number, because the mean of its divisors is an integer number (106334770).

Almost surely, 2404072107 is an apocalyptic number.

404072107 is a deficient number, since it is larger than the sum of its proper divisors (21266973).

404072107 is a wasteful number, since it uses less digits than its factorization.

404072107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21266972.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 404072107 is about 20101.5448908784. The cubic root of 404072107 is about 739.2981579090.

The spelling of 404072107 in words is "four hundred four million, seventy-two thousand, one hundred seven".

Divisors: 1 19 21266953 404072107