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29742433 = 74248919
BaseRepresentation
bin111000101110…
…1010101100001
32001222001221121
41301131111201
530103224213
62541252241
7510543430
oct161352541
961861847
1029742433
1115874a26
129b64081
136214996
143d43117
15292788d
hex1c5d561

29742433 has 4 divisors (see below), whose sum is σ = 33991360. Its totient is φ = 25493508.

The previous prime is 29742421. The next prime is 29742443. The reversal of 29742433 is 33424792.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29742433 is a prime.

It is a super-2 number, since 2×297424332 = 1769224641518978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29742443) 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, 2124453 + ... + 2124466.

It is an arithmetic number, because the mean of its divisors is an integer number (8497840).

Almost surely, 229742433 is an apocalyptic number.

It is an amenable number.

29742433 is a deficient number, since it is larger than the sum of its proper divisors (4248927).

29742433 is an equidigital number, since it uses as much as digits as its factorization.

29742433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248926.

The product of its digits is 36288, while the sum is 34.

The square root of 29742433 is about 5453.6623474506. The cubic root of 29742433 is about 309.8314484351.

The spelling of 29742433 in words is "twenty-nine million, seven hundred forty-two thousand, four hundred thirty-three".

Divisors: 1 7 4248919 29742433