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29971452 = 2237356803
BaseRepresentation
bin111001001010…
…1001111111100
32002101201002210
41302111033330
530133041302
62550220420
7512516220
oct162251774
962351083
1029971452
1115a10aa5
12a054710
136294cb4
143da2780
15297066c
hex1c953fc

29971452 has 24 divisors (see below), whose sum is σ = 79924096. Its totient is φ = 8563248.

The previous prime is 29971433. The next prime is 29971453. The reversal of 29971452 is 25417992.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 29971452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29971453) 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, 178318 + ... + 178485.

Almost surely, 229971452 is an apocalyptic number.

It is an amenable number.

29971452 is an abundant number, since it is smaller than the sum of its proper divisors (49952644).

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

29971452 is a wasteful number, since it uses less digits than its factorization.

29971452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356817 (or 356815 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 29971452 is about 5474.6188908453. The cubic root of 29971452 is about 310.6246579001.

The spelling of 29971452 in words is "twenty-nine million, nine hundred seventy-one thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 356803 713606 1070409 1427212 2140818 2497621 4281636 4995242 7492863 9990484 14985726 29971452