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20352054 = 236750627
BaseRepresentation
bin100110110100…
…0110000110110
31102021222202210
41031220300312
520202231204
62004114250
7334663302
oct115506066
942258683
1020352054
1110540888
126995986
1342a7748
1429bad02
151bc0389
hex1368c36

20352054 has 16 divisors (see below), whose sum is σ = 41312448. Its totient is φ = 6682632.

The previous prime is 20352049. The next prime is 20352061. The reversal of 20352054 is 45025302.

It is a super-2 number, since 2×203520542 = 828412204037832, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20352054.

It is a congruent number.

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, 24912 + ... + 25715.

It is an arithmetic number, because the mean of its divisors is an integer number (2582028).

Almost surely, 220352054 is an apocalyptic number.

20352054 is an abundant number, since it is smaller than the sum of its proper divisors (20960394).

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

20352054 is a wasteful number, since it uses less digits than its factorization.

20352054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50699.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20352054 is about 4511.3250825007. The cubic root of 20352054 is about 273.0252093346.

Adding to 20352054 its reverse (45025302), we get a palindrome (65377356).

The spelling of 20352054 in words is "twenty million, three hundred fifty-two thousand, fifty-four".

Divisors: 1 2 3 6 67 134 201 402 50627 101254 151881 303762 3392009 6784018 10176027 20352054