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20068104 = 2337196287
BaseRepresentation
bin100110010001…
…1011100001000
31101202120021010
41030203130020
520114134404
61554043520
7332401410
oct114433410
941676233
1020068104
1110367511
1268795a0
134208424
142945640
151b66189
hex1323708

20068104 has 64 divisors (see below), whose sum is σ = 60364800. Its totient is φ = 5431104.

The previous prime is 20068093. The next prime is 20068117. The reversal of 20068104 is 40186002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49 + ... + 6335.

It is an arithmetic number, because the mean of its divisors is an integer number (943200).

Almost surely, 220068104 is an apocalyptic number.

20068104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20068104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30182400).

20068104 is an abundant number, since it is smaller than the sum of its proper divisors (40296696).

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

20068104 is a wasteful number, since it uses less digits than its factorization.

20068104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20068104 is about 4479.7437426710. The cubic root of 20068104 is about 271.7495170960.

The spelling of 20068104 in words is "twenty million, sixty-eight thousand, one hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 56 57 76 84 114 133 152 168 228 266 399 456 532 798 1064 1596 3192 6287 12574 18861 25148 37722 44009 50296 75444 88018 119453 132027 150888 176036 238906 264054 352072 358359 477812 528108 716718 836171 955624 1056216 1433436 1672342 2508513 2866872 3344684 5017026 6689368 10034052 20068104