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29519620 = 22513113537
BaseRepresentation
bin111000010011…
…0111100000100
32001112202022021
41300212330010
530024111440
62532412524
7505625014
oct160467404
961482267
1029519620
1115732589
129a77144
136167440
143cc5c44
1528d184a
hex1c26f04

29519620 has 24 divisors (see below), whose sum is σ = 66760344. Its totient is φ = 10899456.

The previous prime is 29519617. The next prime is 29519627. The reversal of 29519620 is 2691592.

It can be written as a sum of positive squares in 4 ways, for example, as 12996 + 29506624 = 114^2 + 5432^2 .

It is not an unprimeable number, because it can be changed into a prime (29519627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56509 + ... + 57028.

It is an arithmetic number, because the mean of its divisors is an integer number (2781681).

Almost surely, 229519620 is an apocalyptic number.

29519620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29519620 is an abundant number, since it is smaller than the sum of its proper divisors (37240724).

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

29519620 is a wasteful number, since it uses less digits than its factorization.

29519620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113559 (or 113557 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 29519620 is about 5433.1961127867. The cubic root of 29519620 is about 309.0558160326.

The spelling of 29519620 in words is "twenty-nine million, five hundred nineteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 113537 227074 454148 567685 1135370 1475981 2270740 2951962 5903924 7379905 14759810 29519620