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29642951 = 13171131187
BaseRepresentation
bin111000100010…
…1000011000111
32001210000111002
41301011003013
530042033301
62535203515
7506650412
oct161050307
961700432
1029642951
1115807208
129b1659b
1361ab610
143d18b79
15290816b
hex1c450c7

29642951 has 16 divisors (see below), whose sum is σ = 34128864. Its totient is φ = 25503744.

The previous prime is 29642941. The next prime is 29642969. The reversal of 29642951 is 15924692.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29642951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29642941) 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 15 ways as a sum of consecutive naturals, for example, 24380 + ... + 25566.

It is an arithmetic number, because the mean of its divisors is an integer number (2133054).

Almost surely, 229642951 is an apocalyptic number.

29642951 is a deficient number, since it is larger than the sum of its proper divisors (4485913).

29642951 is a wasteful number, since it uses less digits than its factorization.

29642951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its digits is 38880, while the sum is 38.

The square root of 29642951 is about 5444.5340480155. The cubic root of 29642951 is about 309.4856228690.

The spelling of 29642951 in words is "twenty-nine million, six hundred forty-two thousand, nine hundred fifty-one".

Divisors: 1 13 17 113 221 1187 1469 1921 15431 20179 24973 134131 262327 1743703 2280227 29642951