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210768117 = 3710036577
BaseRepresentation
bin11001001000000…
…01000011110101
3112200121010111120
430210001003311
5412424034432
632525254153
75136333210
oct1444010365
9480533446
10210768117
11a8a7822a
125a704359
1334887681
141ddc6777
1513784c2c
hexc9010f5

210768117 has 8 divisors (see below), whose sum is σ = 321170496. Its totient is φ = 120438912.

The previous prime is 210768097. The next prime is 210768139. The reversal of 210768117 is 711867012.

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

It is not a de Polignac number, because 210768117 - 220 = 209719541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210768917) 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 in 7 ways as a sum of consecutive naturals, for example, 5018268 + ... + 5018309.

It is an arithmetic number, because the mean of its divisors is an integer number (40146312).

Almost surely, 2210768117 is an apocalyptic number.

It is an amenable number.

210768117 is a deficient number, since it is larger than the sum of its proper divisors (110402379).

210768117 is a wasteful number, since it uses less digits than its factorization.

210768117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036587.

The product of its (nonzero) digits is 4704, while the sum is 33.

The square root of 210768117 is about 14517.8551101738. The cubic root of 210768117 is about 595.1160162632.

The spelling of 210768117 in words is "two hundred ten million, seven hundred sixty-eight thousand, one hundred seventeen".

Divisors: 1 3 7 21 10036577 30109731 70256039 210768117