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214590916 = 22109577853
BaseRepresentation
bin11001100101001…
…10010111000100
3112221210100101201
430302212113010
5414413402131
633143232244
75213664331
oct1462462704
9487710351
10214590916
11100149371
125ba48684
13355c5697
14206dd988
1513c8c761
hexcca65c4

214590916 has 24 divisors (see below), whose sum is σ = 380081240. Its totient is φ = 106002432.

The previous prime is 214590913. The next prime is 214590947. The reversal of 214590916 is 619095412.

It can be written as a sum of positive squares in 4 ways, for example, as 63202500 + 151388416 = 7950^2 + 12304^2 .

It is a super-2 number, since 2×2145909162 = 92098522459438112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214590913) 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 7 ways as a sum of consecutive naturals, for example, 251146 + ... + 251998.

Almost surely, 2214590916 is an apocalyptic number.

It is an amenable number.

214590916 is a deficient number, since it is larger than the sum of its proper divisors (165490324).

214590916 is a wasteful number, since it uses less digits than its factorization.

214590916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 214590916 is about 14648.9220081206. The cubic root of 214590916 is about 598.6924451631.

The spelling of 214590916 in words is "two hundred fourteen million, five hundred ninety thousand, nine hundred sixteen".

Divisors: 1 2 4 109 218 436 577 853 1154 1706 2308 3412 62893 92977 125786 185954 251572 371908 492181 984362 1968724 53647729 107295458 214590916