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20120034 = 2311304849
BaseRepresentation
bin100110011000…
…0000111100010
31101212012111110
41030300013202
520122320114
61555124150
7333005664
oct114600742
941765443
1020120034
11103a2530
1268a3656
134225c5c
14295a534
151b76759
hex13301e2

20120034 has 16 divisors (see below), whose sum is σ = 43898400. Its totient is φ = 6096960.

The previous prime is 20120029. The next prime is 20120047. The reversal of 20120034 is 43002102.

It is a super-2 number, since 2×201200342 = 809631536322312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152359 + ... + 152490.

It is an arithmetic number, because the mean of its divisors is an integer number (2743650).

Almost surely, 220120034 is an apocalyptic number.

20120034 is an abundant number, since it is smaller than the sum of its proper divisors (23778366).

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

20120034 is a wasteful number, since it uses less digits than its factorization.

20120034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304865.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20120034 is about 4485.5360883622. The cubic root of 20120034 is about 271.9837162253.

Adding to 20120034 its reverse (43002102), we get a palindrome (63122136).

The spelling of 20120034 in words is "twenty million, one hundred twenty thousand, thirty-four".

Divisors: 1 2 3 6 11 22 33 66 304849 609698 914547 1829094 3353339 6706678 10060017 20120034