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20369674 = 2132321481
BaseRepresentation
bin100110110110…
…1000100001010
31102022212221101
41031231010022
520203312144
62004332014
7335065543
oct115550412
942285841
1020369674
1110553046
1269a400a
1342b2780
1429c34ca
151bc56d4
hex136d10a

20369674 has 24 divisors (see below), whose sum is σ = 34420932. Its totient is φ = 8986560.

The previous prime is 20369639. The next prime is 20369677. The reversal of 20369674 is 47696302.

It can be written as a sum of positive squares in 2 ways, for example, as 19298449 + 1071225 = 4393^2 + 1035^2 .

It is not an unprimeable number, because it can be changed into a prime (20369677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13014 + ... + 14494.

Almost surely, 220369674 is an apocalyptic number.

20369674 is a deficient number, since it is larger than the sum of its proper divisors (14051258).

20369674 is a wasteful number, since it uses less digits than its factorization.

20369674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 20369674 is about 4513.2775230424. The cubic root of 20369674 is about 273.1039780681.

The spelling of 20369674 in words is "twenty million, three hundred sixty-nine thousand, six hundred seventy-four".

Divisors: 1 2 13 23 26 46 299 529 598 1058 1481 2962 6877 13754 19253 34063 38506 68126 442819 783449 885638 1566898 10184837 20369674