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29907379 = 139215161
BaseRepresentation
bin111001000010…
…1100110110011
32002021110012201
41302011212303
530124014004
62545004031
7512131345
oct162054663
962243181
1029907379
1115977947
12a023617
136271a98
143d87295
15295b6a4
hex1c859b3

29907379 has 4 divisors (see below), whose sum is σ = 30122680. Its totient is φ = 29692080.

The previous prime is 29907341. The next prime is 29907391. The reversal of 29907379 is 97370992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29907379 - 29 = 29906867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29907079) by changing a digit.

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, 107442 + ... + 107719.

It is an arithmetic number, because the mean of its divisors is an integer number (7530670).

Almost surely, 229907379 is an apocalyptic number.

29907379 is a deficient number, since it is larger than the sum of its proper divisors (215301).

29907379 is a wasteful number, since it uses less digits than its factorization.

29907379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215300.

The product of its (nonzero) digits is 214326, while the sum is 46.

The square root of 29907379 is about 5468.7639371251. The cubic root of 29907379 is about 310.4031487429.

The spelling of 29907379 in words is "twenty-nine million, nine hundred seven thousand, three hundred seventy-nine".

Divisors: 1 139 215161 29907379