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189214708 = 221032571787
BaseRepresentation
bin10110100011100…
…10111111110100
3111012001002210011
423101302333310
5341414332313
630435310004
74455204244
oct1321627764
9435032704
10189214708
11978968a1
125344b304
133027c187
141b1b5b24
151192893d
hexb472ff4

189214708 has 24 divisors (see below), whose sum is σ = 335829312. Its totient is φ = 93272064.

The previous prime is 189214693. The next prime is 189214733. The reversal of 189214708 is 807412981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104991 + ... + 106777.

It is an arithmetic number, because the mean of its divisors is an integer number (13992888).

Almost surely, 2189214708 is an apocalyptic number.

It is an amenable number.

189214708 is a deficient number, since it is larger than the sum of its proper divisors (146614604).

189214708 is a wasteful number, since it uses less digits than its factorization.

189214708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 189214708 is about 13755.5337228331. The cubic root of 189214708 is about 574.0965856238.

The spelling of 189214708 in words is "one hundred eighty-nine million, two hundred fourteen thousand, seven hundred eight".

Divisors: 1 2 4 103 206 257 412 514 1028 1787 3574 7148 26471 52942 105884 184061 368122 459259 736244 918518 1837036 47303677 94607354 189214708