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20895674 = 231536359
BaseRepresentation
bin100111110110…
…1011110111010
31110022121110212
41033231132322
520322130144
62023511122
7342416222
oct117553672
943277425
1020895674
1110882258
126bb84a2
134438007
142abd082
151c7b49e
hex13ed7ba

20895674 has 16 divisors (see below), whose sum is σ = 32970240. Its totient is φ = 9918480.

The previous prime is 20895671. The next prime is 20895701. The reversal of 20895674 is 47659802.

It is not an unprimeable number, because it can be changed into a prime (20895671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107 + ... + 6465.

It is an arithmetic number, because the mean of its divisors is an integer number (2060640).

Almost surely, 220895674 is an apocalyptic number.

20895674 is a deficient number, since it is larger than the sum of its proper divisors (12074566).

20895674 is a wasteful number, since it uses less digits than its factorization.

20895674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 20895674 is about 4571.1786226311. The cubic root of 20895674 is about 275.4347898973.

The spelling of 20895674 in words is "twenty million, eight hundred ninety-five thousand, six hundred seventy-four".

Divisors: 1 2 31 53 62 106 1643 3286 6359 12718 197129 337027 394258 674054 10447837 20895674