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211411914 = 23729173573
BaseRepresentation
bin11001001100111…
…10001111001010
3112201210211121220
430212132033022
5413110140124
632551142510
75144654160
oct1446361712
9481724556
10211411914
11a937799a
125a974a36
1334a5170c
1420113230
1513860879
hexc99e3ca

211411914 has 32 divisors (see below), whose sum is σ = 499893120. Its totient is φ = 58320192.

The previous prime is 211411903. The next prime is 211411957. The reversal of 211411914 is 419114112.

It is a super-2 number, since 2×2114119142 = 89389994762286792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85569 + ... + 88004.

It is an arithmetic number, because the mean of its divisors is an integer number (15621660).

Almost surely, 2211411914 is an apocalyptic number.

211411914 is an abundant number, since it is smaller than the sum of its proper divisors (288481206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211411914 is a wasteful number, since it uses less digits than its factorization.

211411914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173614.

The product of its digits is 288, while the sum is 24.

The square root of 211411914 is about 14540.0107977952. The cubic root of 211411914 is about 595.7213330988.

It can be divided in two parts, 2114 and 11914, that added together give a triangular number (14028 = T167).

The spelling of 211411914 in words is "two hundred eleven million, four hundred eleven thousand, nine hundred fourteen".

Divisors: 1 2 3 6 7 14 21 29 42 58 87 174 203 406 609 1218 173573 347146 520719 1041438 1215011 2430022 3645033 5033617 7290066 10067234 15100851 30201702 35235319 70470638 105705957 211411914