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20700468 = 2233191671
BaseRepresentation
bin100111011110…
…1110100110100
31102221200201000
41032331310310
520244403333
62015403300
7340644135
oct116756464
942850630
1020700468
1110759628
126b23530
13439a1c9
142a6bc8c
151c3d713
hex13bdd34

20700468 has 24 divisors (see below), whose sum is σ = 53668160. Its totient is φ = 6900120.

The previous prime is 20700457. The next prime is 20700469. The reversal of 20700468 is 86400702.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20700469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95728 + ... + 95943.

Almost surely, 220700468 is an apocalyptic number.

It is an amenable number.

20700468 is an abundant number, since it is smaller than the sum of its proper divisors (32967692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20700468 is a wasteful number, since it uses less digits than its factorization.

20700468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191684 (or 191676 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20700468 is about 4549.7766978172. The cubic root of 20700468 is about 274.5744072529.

The spelling of 20700468 in words is "twenty million, seven hundred thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 191671 383342 575013 766684 1150026 1725039 2300052 3450078 5175117 6900156 10350234 20700468