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20469064 = 23721147101
BaseRepresentation
bin100111000010…
…1010101001000
31102111221021111
41032011111020
520220002224
62010420104
7335661400
oct116052510
942457244
1020469064
1110610790
126a31634
134318a95
142a0b800
151be4d94
hex1385548

20469064 has 96 divisors (see below), whose sum is σ = 50232960. Its totient is φ = 7728000.

The previous prime is 20469049. The next prime is 20469067. The reversal of 20469064 is 46096402.

It is not an unprimeable number, because it can be changed into a prime (20469067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202614 + ... + 202714.

It is an arithmetic number, because the mean of its divisors is an integer number (523260).

Almost surely, 220469064 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 20469064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25116480).

20469064 is an abundant number, since it is smaller than the sum of its proper divisors (29763896).

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

20469064 is a wasteful number, since it uses less digits than its factorization.

20469064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 20469064 is about 4524.2749695393. The cubic root of 20469064 is about 273.5474441076.

The spelling of 20469064 in words is "twenty million, four hundred sixty-nine thousand, sixty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 47 49 56 77 88 94 98 101 154 188 196 202 308 329 376 392 404 517 539 616 658 707 808 1034 1078 1111 1316 1414 2068 2156 2222 2303 2632 2828 3619 4136 4312 4444 4606 4747 4949 5656 7238 7777 8888 9212 9494 9898 14476 15554 18424 18988 19796 25333 28952 31108 33229 37976 39592 50666 52217 54439 62216 66458 101332 104434 108878 132916 202664 208868 217756 232603 265832 365519 417736 435512 465206 731038 930412 1462076 1860824 2558633 2924152 5117266 10234532 20469064