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29992085 = 55998417
BaseRepresentation
bin111001001101…
…0010010010101
32002102202101222
41302122102111
530134221320
62550500125
7512633324
oct162322225
962382358
1029992085
1115a25552
12a064645
1362a14c6
143daa0bb
152976825
hex1c9a495

29992085 has 4 divisors (see below), whose sum is σ = 35990508. Its totient is φ = 23993664.

The previous prime is 29992049. The next prime is 29992087. The reversal of 29992085 is 58029992.

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 22363441 + 7628644 = 4729^2 + 2762^2 .

It is a cyclic number.

It is not a de Polignac number, because 29992085 - 222 = 25797781 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 (29992087) 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, 2999204 + ... + 2999213.

It is an arithmetic number, because the mean of its divisors is an integer number (8997627).

Almost surely, 229992085 is an apocalyptic number.

It is an amenable number.

29992085 is a deficient number, since it is larger than the sum of its proper divisors (5998423).

29992085 is an equidigital number, since it uses as much as digits as its factorization.

29992085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5998422.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 29992085 is about 5476.5029900476. The cubic root of 29992085 is about 310.6959218082.

The spelling of 29992085 in words is "twenty-nine million, nine hundred ninety-two thousand, eighty-five".

Divisors: 1 5 5998417 29992085