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211160290 = 251115712227
BaseRepresentation
bin11001001011000…
…00110011100010
3112201100001110111
430211200303202
5413024112130
632541521534
75142555445
oct1445406342
9481301414
10211160290
11a9215940
125a8732aa
1334994023
142008965c
151381102a
hexc960ce2

211160290 has 32 divisors (see below), whose sum is σ = 417317184. Its totient is φ = 76290240.

The previous prime is 211160273. The next prime is 211160297. The reversal of 211160290 is 92061112.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (211160297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11157 + ... + 23383.

It is an arithmetic number, because the mean of its divisors is an integer number (13041162).

Almost surely, 2211160290 is an apocalyptic number.

211160290 is a deficient number, since it is larger than the sum of its proper divisors (206156894).

211160290 is a wasteful number, since it uses less digits than its factorization.

211160290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12402.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 211160290 is about 14531.3554082198. The cubic root of 211160290 is about 595.4848953140.

The spelling of 211160290 in words is "two hundred eleven million, one hundred sixty thousand, two hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 157 314 785 1570 1727 3454 8635 12227 17270 24454 61135 122270 134497 268994 672485 1344970 1919639 3839278 9598195 19196390 21116029 42232058 105580145 211160290