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189029711 = 1321118519
BaseRepresentation
bin10110100010001…
…01110101001111
3111011200201000102
423101011311033
5341342422321
630431321315
74453504013
oct1321056517
9434621012
10189029711
119777a902
125338023b
1330215c00
141b168543
15118ddc0b
hexb445d4f

189029711 has 6 divisors (see below), whose sum is σ = 204689160. Its totient is φ = 174488808.

The previous prime is 189029693. The next prime is 189029717. The reversal of 189029711 is 117920981.

It is not a de Polignac number, because 189029711 - 226 = 121920847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189029717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559091 + ... + 559428.

It is an arithmetic number, because the mean of its divisors is an integer number (34114860).

Almost surely, 2189029711 is an apocalyptic number.

189029711 is a deficient number, since it is larger than the sum of its proper divisors (15659449).

189029711 is a wasteful number, since it uses less digits than its factorization.

189029711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118545 (or 1118532 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 189029711 is about 13748.8076210266. The cubic root of 189029711 is about 573.9094247367.

The spelling of 189029711 in words is "one hundred eighty-nine million, twenty-nine thousand, seven hundred eleven".

Divisors: 1 13 169 1118519 14540747 189029711