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20326029 = 3191911867
BaseRepresentation
bin100110110001…
…0011010001101
31102020200001220
41031202122031
520200413104
62003353553
7334524363
oct115423215
942220056
1020326029
1110523279
1269828b9
134298949
1429b1633
151bb77d9
hex136268d

20326029 has 16 divisors (see below), whose sum is σ = 28692480. Its totient is φ = 12763440.

The previous prime is 20326021. The next prime is 20326039. The reversal of 20326029 is 92062302.

It is not a de Polignac number, because 20326029 - 23 = 20326021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20326021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9954 + ... + 11820.

It is an arithmetic number, because the mean of its divisors is an integer number (1793280).

Almost surely, 220326029 is an apocalyptic number.

It is an amenable number.

20326029 is a deficient number, since it is larger than the sum of its proper divisors (8366451).

20326029 is a wasteful number, since it uses less digits than its factorization.

20326029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20326029 is about 4508.4397522868. The cubic root of 20326029 is about 272.9087835443.

The spelling of 20326029 in words is "twenty million, three hundred twenty-six thousand, twenty-nine".

Divisors: 1 3 19 57 191 573 1867 3629 5601 10887 35473 106419 356597 1069791 6775343 20326029