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29971214 = 2713164677
BaseRepresentation
bin111001001010…
…1001100001110
32002101200202222
41302111030032
530133034324
62550215342
7512515430
oct162251416
962350688
1029971214
1115a108a9
12a054552
136294b60
143da2650
15297055e
hex1c9530e

29971214 has 16 divisors (see below), whose sum is σ = 55331808. Its totient is φ = 11856672.

The previous prime is 29971213. The next prime is 29971229. The reversal of 29971214 is 41217992.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29971211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82157 + ... + 82520.

It is an arithmetic number, because the mean of its divisors is an integer number (3458238).

Almost surely, 229971214 is an apocalyptic number.

29971214 is a deficient number, since it is larger than the sum of its proper divisors (25360594).

29971214 is a wasteful number, since it uses less digits than its factorization.

29971214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164699.

The product of its digits is 9072, while the sum is 35.

The square root of 29971214 is about 5474.5971541292. The cubic root of 29971214 is about 310.6238356858.

The spelling of 29971214 in words is "twenty-nine million, nine hundred seventy-one thousand, two hundred fourteen".

Divisors: 1 2 7 13 14 26 91 182 164677 329354 1152739 2140801 2305478 4281602 14985607 29971214