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29288860 = 2255327631
BaseRepresentation
bin110111110111…
…0100110011100
32001010000202121
41233232212130
524444220420
62523432324
7503644156
oct157564634
961100677
1029288860
1115595177
1299856a4
1360b63b3
143c65ad6
1528882aa
hex1bee99c

29288860 has 24 divisors (see below), whose sum is σ = 62669376. Its totient is φ = 11494080.

The previous prime is 29288851. The next prime is 29288873. The reversal of 29288860 is 6888292.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12756 + ... + 14875.

It is an arithmetic number, because the mean of its divisors is an integer number (2611224).

Almost surely, 229288860 is an apocalyptic number.

29288860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29288860 is an abundant number, since it is smaller than the sum of its proper divisors (33380516).

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

29288860 is a wasteful number, since it uses less digits than its factorization.

29288860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27693 (or 27691 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 29288860 is about 5411.9183290216. The cubic root of 29288860 is about 308.2483941018.

The spelling of 29288860 in words is "twenty-nine million, two hundred eighty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 27631 55262 110524 138155 276310 552620 1464443 2928886 5857772 7322215 14644430 29288860