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20628092 = 223723767
BaseRepresentation
bin100111010110…
…0001001111100
31102211000102102
41032230021330
520240044332
62014044232
7340223132
oct116541174
942730372
1020628092
111070a211
126aa9678
134373294
142a4d752
151c27062
hex13ac27c

20628092 has 18 divisors (see below), whose sum is σ = 37111032. Its totient is φ = 10032624.

The previous prime is 20628061. The next prime is 20628103. The reversal of 20628092 is 29082602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3593 + ... + 7359.

It is an arithmetic number, because the mean of its divisors is an integer number (2061724).

Almost surely, 220628092 is an apocalyptic number.

It is an amenable number.

20628092 is a deficient number, since it is larger than the sum of its proper divisors (16482940).

20628092 is a wasteful number, since it uses less digits than its factorization.

20628092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845 (or 3806 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20628092 is about 4541.8159363849. The cubic root of 20628092 is about 274.2540311970.

The spelling of 20628092 in words is "twenty million, six hundred twenty-eight thousand, ninety-two".

Divisors: 1 2 4 37 74 148 1369 2738 3767 5476 7534 15068 139379 278758 557516 5157023 10314046 20628092