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20719852 = 2237139999
BaseRepresentation
bin100111100001…
…0100011101100
31102222200021221
41033002203230
520301013402
62020033124
7341054506
oct117024354
942880257
1020719852
111077214a
126b327a4
1343a5c8a
142a74d76
151c44337
hex13c28ec

20719852 has 12 divisors (see below), whose sum is σ = 37240000. Its totient is φ = 10079856.

The previous prime is 20719841. The next prime is 20719913. The reversal of 20719852 is 25891702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69852 + ... + 70147.

Almost surely, 220719852 is an apocalyptic number.

It is an amenable number.

20719852 is a deficient number, since it is larger than the sum of its proper divisors (16520148).

20719852 is a wasteful number, since it uses less digits than its factorization.

20719852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140040 (or 140038 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 20719852 is about 4551.9064138007. The cubic root of 20719852 is about 274.6600847021.

The spelling of 20719852 in words is "twenty million, seven hundred nineteen thousand, eight hundred fifty-two".

Divisors: 1 2 4 37 74 148 139999 279998 559996 5179963 10359926 20719852