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20000274 = 2371971353
BaseRepresentation
bin100110001001…
…0111000010010
31101122010012220
41030102320102
520110002044
61552401510
7331666560
oct114227022
941563186
1020000274
1110320558
126846296
1341b35a8
142928a30
151b51019
hex1312e12

20000274 has 64 divisors (see below), whose sum is σ = 48936960. Its totient is φ = 5322240.

The previous prime is 20000269. The next prime is 20000287. The reversal of 20000274 is 47200002.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56482 + ... + 56834.

It is an arithmetic number, because the mean of its divisors is an integer number (764640).

Almost surely, 220000274 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24468480).

20000274 is an abundant number, since it is smaller than the sum of its proper divisors (28936686).

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

20000274 is a wasteful number, since it uses less digits than its factorization.

20000274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 20000274 is about 4472.1665890259. The cubic root of 20000274 is about 271.4430012379.

Adding to 20000274 its reverse (47200002), we get a palindrome (67200276).

The spelling of 20000274 in words is "twenty million, two hundred seventy-four", and thus it is an aban number.

Divisors: 1 2 3 6 7 14 19 21 38 42 57 71 114 133 142 213 266 353 399 426 497 706 798 994 1059 1349 1491 2118 2471 2698 2982 4047 4942 6707 7413 8094 9443 13414 14826 18886 20121 25063 28329 40242 46949 50126 56658 75189 93898 140847 150378 175441 281694 350882 476197 526323 952394 1052646 1428591 2857182 3333379 6666758 10000137 20000274