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29170089 = 3213249317
BaseRepresentation
bin110111101000…
…1100110101001
32000212222211200
41233101212221
524431420324
62521114413
7502640664
oct157214651
960788750
1029170089
1115513a13
129928a09
136074310
143c346db
152862ec9
hex1bd19a9

29170089 has 12 divisors (see below), whose sum is σ = 45375876. Its totient is φ = 17950752.

The previous prime is 29170081. The next prime is 29170103. The reversal of 29170089 is 98007192.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12425625 + 16744464 = 3525^2 + 4092^2 .

It is not a de Polignac number, because 29170089 - 23 = 29170081 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (29170081) 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, 124542 + ... + 124775.

It is an arithmetic number, because the mean of its divisors is an integer number (3781323).

Almost surely, 229170089 is an apocalyptic number.

It is an amenable number.

29170089 is a deficient number, since it is larger than the sum of its proper divisors (16205787).

29170089 is a wasteful number, since it uses less digits than its factorization.

29170089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249336 (or 249333 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 29170089 is about 5400.9340858781. The cubic root of 29170089 is about 307.8311641427.

The spelling of 29170089 in words is "twenty-nine million, one hundred seventy thousand, eighty-nine".

Divisors: 1 3 9 13 39 117 249317 747951 2243853 3241121 9723363 29170089