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214031392 = 256688481
BaseRepresentation
bin11001100000111…
…01110000100000
3112220201220212121
430300131300200
5414243001032
633123234024
75206144141
oct1460356040
9486656777
10214031392
11aa8a6a53
125b818914
133545aac3
14205d5ac8
1513bcba97
hexcc1dc20

214031392 has 12 divisors (see below), whose sum is σ = 421374366. Its totient is φ = 107015680.

The previous prime is 214031369. The next prime is 214031393. The reversal of 214031392 is 293130412.

It can be written as a sum of positive squares in only one way, i.e., 187032976 + 26998416 = 13676^2 + 5196^2 .

It is a super-2 number, since 2×2140313922 = 91618873522915328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214031393) by changing a digit.

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 as a sum of consecutive naturals, namely, 3344209 + ... + 3344272.

Almost surely, 2214031392 is an apocalyptic number.

It is an amenable number.

214031392 is a deficient number, since it is larger than the sum of its proper divisors (207342974).

214031392 is an equidigital number, since it uses as much as digits as its factorization.

214031392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688491 (or 6688483 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 214031392 is about 14629.8117554533. The cubic root of 214031392 is about 598.1716490286.

The spelling of 214031392 in words is "two hundred fourteen million, thirty-one thousand, three hundred ninety-two".

Divisors: 1 2 4 8 16 32 6688481 13376962 26753924 53507848 107015696 214031392