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211468738 = 2138133413
BaseRepresentation
bin11001001101011…
…00000111000010
3112201220201120111
430212230013002
5413113444423
632552301534
75145311635
oct1446540702
9481821514
10211468738
11a9406658
125a9a18aa
1334a71540
1420129c1c
151387260d
hexc9ac1c2

211468738 has 8 divisors (see below), whose sum is σ = 341603388. Its totient is φ = 97600944.

The previous prime is 211468723. The next prime is 211468753. The reversal of 211468738 is 837864112.

It is an interprime number because it is at equal distance from previous prime (211468723) and next prime (211468753).

It can be written as a sum of positive squares in 2 ways, for example, as 194797849 + 16670889 = 13957^2 + 4083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 211468738.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4066681 + ... + 4066732.

Almost surely, 2211468738 is an apocalyptic number.

211468738 is a deficient number, since it is larger than the sum of its proper divisors (130134650).

211468738 is a wasteful number, since it uses less digits than its factorization.

211468738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133428.

The product of its digits is 64512, while the sum is 40.

The square root of 211468738 is about 14541.9647228289. The cubic root of 211468738 is about 595.7747016404.

The spelling of 211468738 in words is "two hundred eleven million, four hundred sixty-eight thousand, seven hundred thirty-eight".

Divisors: 1 2 13 26 8133413 16266826 105734369 211468738