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29782993 = 86334511
BaseRepresentation
bin111000110011…
…1001111010001
32002001010120211
41301213033101
530111023433
62542204121
7511102612
oct161471721
962033524
1029782993
11158a2449
129b83641
13622a296
143d53c09
1529348cd
hex1c673d1

29782993 has 4 divisors (see below), whose sum is σ = 29818368. Its totient is φ = 29747620.

The previous prime is 29782969. The next prime is 29783003. The reversal of 29782993 is 39928792.

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-29782993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29782943) 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, 16393 + ... + 18118.

It is an arithmetic number, because the mean of its divisors is an integer number (7454592).

Almost surely, 229782993 is an apocalyptic number.

It is an amenable number.

29782993 is a deficient number, since it is larger than the sum of its proper divisors (35375).

29782993 is an equidigital number, since it uses as much as digits as its factorization.

29782993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35374.

The product of its digits is 489888, while the sum is 49.

The square root of 29782993 is about 5457.3796825949. The cubic root of 29782993 is about 309.9722243584.

The spelling of 29782993 in words is "twenty-nine million, seven hundred eighty-two thousand, nine hundred ninety-three".

Divisors: 1 863 34511 29782993