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29814980 = 2251328821
BaseRepresentation
bin111000110111…
…1000011000100
32002002202110112
41301233003010
530113034410
62543012152
7511265066
oct161570304
962082415
1029814980
1115914488
129b9a058
13623ba00
143d61736
15293e105
hex1c6f0c4

29814980 has 36 divisors (see below), whose sum is σ = 67805892. Its totient is φ = 11007360.

The previous prime is 29814977. The next prime is 29814989. The reversal of 29814980 is 8941892.

It can be written as a sum of positive squares in 6 ways, for example, as 4393216 + 25421764 = 2096^2 + 5042^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29814989) 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, 1031 + ... + 7790.

It is an arithmetic number, because the mean of its divisors is an integer number (1883497).

Almost surely, 229814980 is an apocalyptic number.

29814980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29814980 is an abundant number, since it is smaller than the sum of its proper divisors (37990912).

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

29814980 is a wasteful number, since it uses less digits than its factorization.

29814980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856 (or 8841 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 29814980 is about 5460.3095150367. The cubic root of 29814980 is about 310.0831549383.

The spelling of 29814980 in words is "twenty-nine million, eight hundred fourteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1690 3380 8821 17642 35284 44105 88210 114673 176420 229346 458692 573365 1146730 1490749 2293460 2981498 5962996 7453745 14907490 29814980