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129482590 = 2582315733
BaseRepresentation
bin1111011011110…
…11111101011110
3100000122101201111
413231323331132
5231121420330
620503132234
73131404156
oct755737536
9300571644
10129482590
11670a9206
123744407a
1320a97123
14132a7766
15b57a32a
hex7b7bf5e

129482590 has 16 divisors (see below), whose sum is σ = 233366688. Its totient is φ = 51726816.

The previous prime is 129482569. The next prime is 129482597. The reversal of 129482590 is 95284921.

It is a super-2 number, since 2×1294825902 = 33531482226216200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129482597) 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, 364 + ... + 16096.

It is an arithmetic number, because the mean of its divisors is an integer number (14585418).

Almost surely, 2129482590 is an apocalyptic number.

129482590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129482590 is a deficient number, since it is larger than the sum of its proper divisors (103884098).

129482590 is a wasteful number, since it uses less digits than its factorization.

129482590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16563.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 129482590 is about 11379.0416995457. The cubic root of 129482590 is about 505.9067329023.

The spelling of 129482590 in words is "one hundred twenty-nine million, four hundred eighty-two thousand, five hundred ninety".

Divisors: 1 2 5 10 823 1646 4115 8230 15733 31466 78665 157330 12948259 25896518 64741295 129482590