Search a number
-
+
214404872 = 23112436419
BaseRepresentation
bin11001100011110…
…00111100001000
3112221102220012012
430301320330020
5414341423442
633135235052
75212261043
oct1461707410
9487386165
10214404872
11100031610
125b978a88
133555bab6
1420691c5a
1513c52582
hexcc78f08

214404872 has 16 divisors (see below), whose sum is σ = 438555600. Its totient is φ = 97456720.

The previous prime is 214404871. The next prime is 214404913. The reversal of 214404872 is 278404412.

It is not an unprimeable number, because it can be changed into a prime (214404871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218122 + ... + 1218297.

It is an arithmetic number, because the mean of its divisors is an integer number (27409725).

Almost surely, 2214404872 is an apocalyptic number.

214404872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

214404872 is an abundant number, since it is smaller than the sum of its proper divisors (224150728).

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

214404872 is a wasteful number, since it uses less digits than its factorization.

214404872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436436 (or 2436432 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 214404872 is about 14642.5705393554. The cubic root of 214404872 is about 598.5193789037.

The spelling of 214404872 in words is "two hundred fourteen million, four hundred four thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 88 2436419 4872838 9745676 19491352 26800609 53601218 107202436 214404872