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29213929 = 127722877
BaseRepresentation
bin110111101110…
…0010011101001
32000222012222101
41233130103221
524434321204
62522053401
7503212543
oct157342351
960865871
1029213929
1115543948
12994a261
13608b264
143c46693
152870ea4
hex1bdc4e9

29213929 has 4 divisors (see below), whose sum is σ = 29238084. Its totient is φ = 29189776.

The previous prime is 29213923. The next prime is 29213953. The reversal of 29213929 is 92931292.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22848400 + 6365529 = 4780^2 + 2523^2 .

It is a cyclic number.

It is not a de Polignac number, because 29213929 - 25 = 29213897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29213923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10162 + ... + 12715.

It is an arithmetic number, because the mean of its divisors is an integer number (7309521).

Almost surely, 229213929 is an apocalyptic number.

It is an amenable number.

29213929 is a deficient number, since it is larger than the sum of its proper divisors (24155).

29213929 is a wasteful number, since it uses less digits than its factorization.

29213929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24154.

The product of its digits is 17496, while the sum is 37.

The square root of 29213929 is about 5404.9911193267. The cubic root of 29213929 is about 307.9853010639.

The spelling of 29213929 in words is "twenty-nine million, two hundred thirteen thousand, nine hundred twenty-nine".

Divisors: 1 1277 22877 29213929