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29802023 = 271110993
BaseRepresentation
bin111000110101…
…1111000100111
32002002002200122
41301223320213
530112131043
62542432155
7511212236
oct161537047
962062618
1029802023
1115905779
129b9265b
136235b44
143d5ab1d
15293a368
hex1c6be27

29802023 has 4 divisors (see below), whose sum is σ = 29815728. Its totient is φ = 29788320.

The previous prime is 29802011. The next prime is 29802029. The reversal of 29802023 is 32020892.

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 29802023 - 212 = 29797927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29801983 and 29802001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29802029) 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, 2786 + ... + 8207.

It is an arithmetic number, because the mean of its divisors is an integer number (7453932).

Almost surely, 229802023 is an apocalyptic number.

29802023 is a deficient number, since it is larger than the sum of its proper divisors (13705).

29802023 is a wasteful number, since it uses less digits than its factorization.

29802023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13704.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 29802023 is about 5459.1229149013. The cubic root of 29802023 is about 310.0382297632.

The spelling of 29802023 in words is "twenty-nine million, eight hundred two thousand, twenty-three".

Divisors: 1 2711 10993 29802023