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29513990 = 2511713779
BaseRepresentation
bin111000010010…
…1100100000110
32001112110120202
41300211210012
530023421430
62532330502
7505602422
oct160454406
961473522
1029513990
1115729330
129a73a32
1361649cc
143cc3b82
1528ced45
hex1c25906

29513990 has 32 divisors (see below), whose sum is σ = 58786560. Its totient is φ = 10578400.

The previous prime is 29513971. The next prime is 29513993. The reversal of 29513990 is 9931592.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29513993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5921 + ... + 9699.

It is an arithmetic number, because the mean of its divisors is an integer number (1837080).

Almost surely, 229513990 is an apocalyptic number.

29513990 is a deficient number, since it is larger than the sum of its proper divisors (29272570).

29513990 is a wasteful number, since it uses less digits than its factorization.

29513990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 29513990 is about 5432.6779768361. The cubic root of 29513990 is about 309.0361670119.

It can be divided in two parts, 29513 and 990, that added together give a palindrome (30503).

The spelling of 29513990 in words is "twenty-nine million, five hundred thirteen thousand, nine hundred ninety".

Divisors: 1 2 5 10 11 22 55 71 110 142 355 710 781 1562 3779 3905 7558 7810 18895 37790 41569 83138 207845 268309 415690 536618 1341545 2683090 2951399 5902798 14756995 29513990