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164729158 = 21126111159
BaseRepresentation
bin10011101000110…
…01000101000110
3102110222002220221
421310121011012
5314132313113
624202414554
74040113636
oct1164310506
9373862827
10164729158
1184a92500
124720145a
1328188199
1417c406c6
15e6dd98d
hex9d19146

164729158 has 24 divisors (see below), whose sum is σ = 276076080. Its totient is φ = 73642800.

The previous prime is 164729153. The next prime is 164729171. The reversal of 164729158 is 851927461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164729153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9183 + ... + 20341.

It is an arithmetic number, because the mean of its divisors is an integer number (11503170).

Almost surely, 2164729158 is an apocalyptic number.

164729158 is a deficient number, since it is larger than the sum of its proper divisors (111346922).

164729158 is a wasteful number, since it uses less digits than its factorization.

164729158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11244 (or 11233 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 164729158 is about 12834.6857382641. The cubic root of 164729158 is about 548.1803866520.

The spelling of 164729158 in words is "one hundred sixty-four million, seven hundred twenty-nine thousand, one hundred fifty-eight".

Divisors: 1 2 11 22 61 121 122 242 671 1342 7381 11159 14762 22318 122749 245498 680699 1350239 1361398 2700478 7487689 14975378 82364579 164729158