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20350484 = 2272119439
BaseRepresentation
bin100110110100…
…0011000010100
31102021220121122
41031220120110
520202203414
62004103112
7334655600
oct115503024
942256548
1020350484
111053a690
126994a98
1342a6b0b
1429ba500
151bbeb8e
hex1368614

20350484 has 36 divisors (see below), whose sum is σ = 45198720. Its totient is φ = 7927920.

The previous prime is 20350471. The next prime is 20350487. The reversal of 20350484 is 48405302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2564 + ... + 6875.

It is an arithmetic number, because the mean of its divisors is an integer number (1255520).

Almost surely, 220350484 is an apocalyptic number.

It is an amenable number.

20350484 is an abundant number, since it is smaller than the sum of its proper divisors (24848236).

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

20350484 is a wasteful number, since it uses less digits than its factorization.

20350484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468 (or 9459 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 20350484 is about 4511.1510726199. The cubic root of 20350484 is about 273.0181885756.

Adding to 20350484 its reverse (48405302), we get a palindrome (68755786).

The spelling of 20350484 in words is "twenty million, three hundred fifty thousand, four hundred eighty-four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 9439 18878 37756 66073 103829 132146 207658 264292 415316 462511 726803 925022 1453606 1850044 2907212 5087621 10175242 20350484