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29199140 = 2251459957
BaseRepresentation
bin110111101100…
…0101100100100
32000221110200122
41233120230210
524433333030
62521501112
7503121455
oct157305444
960843618
1029199140
1115533823
129941798
1360845c9
143c4112c
15286b8e5
hex1bd8b24

29199140 has 12 divisors (see below), whose sum is σ = 61318236. Its totient is φ = 11679648.

The previous prime is 29199133. The next prime is 29199199. The reversal of 29199140 is 4199192.

It can be written as a sum of positive squares in 2 ways, for example, as 18335524 + 10863616 = 4282^2 + 3296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 29199140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729959 + ... + 729998.

It is an arithmetic number, because the mean of its divisors is an integer number (5109853).

Almost surely, 229199140 is an apocalyptic number.

29199140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29199140 is an abundant number, since it is smaller than the sum of its proper divisors (32119096).

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

29199140 is a wasteful number, since it uses less digits than its factorization.

29199140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459966 (or 1459964 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 29199140 is about 5403.6228587865. The cubic root of 29199140 is about 307.9333217104.

The spelling of 29199140 in words is "twenty-nine million, one hundred ninety-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1459957 2919914 5839828 7299785 14599570 29199140