Search a number
-
+
404980908 = 22333748409
BaseRepresentation
bin11000001000111…
…000010010101100
31001020001011100220
4120020320102230
51312133342113
6104104051340
713015165233
oct3010702254
91036034326
10404980908
11198668172
12b3763b50
1365b96797
143baddb1a
1525849523
hex182384ac

404980908 has 12 divisors (see below), whose sum is σ = 944955480. Its totient is φ = 134993632.

The previous prime is 404980861. The next prime is 404980937. The reversal of 404980908 is 809089404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 404980908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16874193 + ... + 16874216.

It is an arithmetic number, because the mean of its divisors is an integer number (78746290).

Almost surely, 2404980908 is an apocalyptic number.

It is an amenable number.

404980908 is an abundant number, since it is smaller than the sum of its proper divisors (539974572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404980908 is a wasteful number, since it uses less digits than its factorization.

404980908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33748416 (or 33748414 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 404980908 is about 20124.1374473541. The cubic root of 404980908 is about 739.8519962101.

The spelling of 404980908 in words is "four hundred four million, nine hundred eighty thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 33748409 67496818 101245227 134993636 202490454 404980908