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20833074 = 2321157393
BaseRepresentation
bin100111101111…
…0001100110010
31110012102121100
41033132030302
520313124244
62022305230
7342035553
oct117361462
943172540
1020833074
111083a219
126b88216
134415682
142aa432a
151c67b69
hex13de332

20833074 has 12 divisors (see below), whose sum is σ = 45138366. Its totient is φ = 6944352.

The previous prime is 20833073. The next prime is 20833091. The reversal of 20833074 is 47033802.

It can be written as a sum of positive squares in only one way, i.e., 19847025 + 986049 = 4455^2 + 993^2 .

It is not an unprimeable number, because it can be changed into a prime (20833073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578679 + ... + 578714.

Almost surely, 220833074 is an apocalyptic number.

20833074 is an abundant number, since it is smaller than the sum of its proper divisors (24305292).

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

20833074 is a wasteful number, since it uses less digits than its factorization.

20833074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157401 (or 1157398 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20833074 is about 4564.3262372447. The cubic root of 20833074 is about 275.1594623367.

Adding to 20833074 its reverse (47033802), we get a palindrome (67866876).

The spelling of 20833074 in words is "twenty million, eight hundred thirty-three thousand, seventy-four".

Divisors: 1 2 3 6 9 18 1157393 2314786 3472179 6944358 10416537 20833074