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20675374 = 231732611
BaseRepresentation
bin100111011011…
…1101100101110
31102220102021121
41032313230232
520243102444
62015051154
7340511026
oct116675456
942812247
1020675374
1110741795
126b10aba
13438b965
142a62a86
151c36084
hex13b7b2e

20675374 has 8 divisors (see below), whose sum is σ = 31111848. Its totient is φ = 10304760.

The previous prime is 20675371. The next prime is 20675381. The reversal of 20675374 is 47357602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×206753743 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675371) 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, 15672 + ... + 16939.

It is an arithmetic number, because the mean of its divisors is an integer number (3888981).

Almost surely, 220675374 is an apocalyptic number.

20675374 is a deficient number, since it is larger than the sum of its proper divisors (10436474).

20675374 is a wasteful number, since it uses less digits than its factorization.

20675374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32930.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 20675374 is about 4547.0181437949. The cubic root of 20675374 is about 274.4634120774.

The spelling of 20675374 in words is "twenty million, six hundred seventy-five thousand, three hundred seventy-four".

Divisors: 1 2 317 634 32611 65222 10337687 20675374