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29138274 = 23211147163
BaseRepresentation
bin110111100100…
…1110101100010
32000211101012100
41233021311202
524424411044
62520311230
7502446144
oct157116542
960741170
1029138274
11154a2020
129912516
1360629a9
143c26c94
152858869
hex1bc9d62

29138274 has 24 divisors (see below), whose sum is σ = 68872752. Its totient is φ = 8829720.

The previous prime is 29138273. The next prime is 29138279. The reversal of 29138274 is 47283192.

It is not an unprimeable number, because it can be changed into a prime (29138273) 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, 73384 + ... + 73779.

It is an arithmetic number, because the mean of its divisors is an integer number (2869698).

Almost surely, 229138274 is an apocalyptic number.

29138274 is an abundant number, since it is smaller than the sum of its proper divisors (39734478).

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

29138274 is a wasteful number, since it uses less digits than its factorization.

29138274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147182 (or 147179 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 29138274 is about 5397.9879584897. The cubic root of 29138274 is about 307.7192091511.

The spelling of 29138274 in words is "twenty-nine million, one hundred thirty-eight thousand, two hundred seventy-four".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 147163 294326 441489 882978 1324467 1618793 2648934 3237586 4856379 9712758 14569137 29138274