Search a number
-
+
20213000104 = 23114722921341
BaseRepresentation
bin10010110100110010…
…011110011110101000
31221011200022210110111
4102310302132132220
5312344012000404
613141414424104
71313616444313
oct226462363650
957150283414
1020213000104
118632791170
123b01362034
131ba18641bb
14d9a6cd97a
157d47e2104
hex4b4c9e7a8

20213000104 has 64 divisors (see below), whose sum is σ = 42410822400. Its totient is φ = 8952556800.

The previous prime is 20213000083. The next prime is 20213000107. The reversal of 20213000104 is 40100031202.

It is not an unprimeable number, because it can be changed into a prime (20213000107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936474 + ... + 957814.

It is an arithmetic number, because the mean of its divisors is an integer number (662669100).

Almost surely, 220213000104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20213000104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21205411200).

20213000104 is an abundant number, since it is smaller than the sum of its proper divisors (22197822296).

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

20213000104 is a wasteful number, since it uses less digits than its factorization.

20213000104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21634 (or 21630 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20213000104 its reverse (40100031202), we get a palindrome (60313031306).

The spelling of 20213000104 in words is "twenty billion, two hundred thirteen million, one hundred four", and thus it is an aban number.

Divisors: 1 2 4 8 11 22 44 47 88 94 188 229 376 458 517 916 1034 1832 2068 2519 4136 5038 10076 10763 20152 21341 21526 42682 43052 85364 86104 118393 170728 234751 236786 469502 473572 939004 947144 1003027 1878008 2006054 4012108 4887089 8024216 9774178 11033297 19548356 22066594 39096712 44133188 53757979 88266376 107515958 215031916 229693183 430063832 459386366 918772732 1837545464 2526625013 5053250026 10106500052 20213000104