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6868992 = 21231343
BaseRepresentation
bin11010001101000000000000
3110220222111010
4122031000000
53224301432
6403120520
7112246134
oct32150000
913828433
106868992
113971859
122373140
1315666c0
14cab3c4
1590a3cc
hex68d000

6868992 has 104 divisors (see below), whose sum is σ = 20182624. Its totient is φ = 2064384.

The previous prime is 6868991. The next prime is 6868999. The reversal of 6868992 is 2998686.

It is a tau number, because it is divible by the number of its divisors (104).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159723 + ... + 159765.

Almost surely, 26868992 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 6868992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10091312).

6868992 is an abundant number, since it is smaller than the sum of its proper divisors (13313632).

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

6868992 is a wasteful number, since it uses less digits than its factorization.

6868992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 61 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 6868992 is about 2620.8761893687. The cubic root of 6868992 is about 190.0922174691.

The spelling of 6868992 in words is "six million, eight hundred sixty-eight thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 43 48 52 64 78 86 96 104 128 129 156 172 192 208 256 258 312 344 384 416 512 516 559 624 688 768 832 1024 1032 1118 1248 1376 1536 1664 1677 2048 2064 2236 2496 2752 3072 3328 3354 4096 4128 4472 4992 5504 6144 6656 6708 8256 8944 9984 11008 12288 13312 13416 16512 17888 19968 22016 26624 26832 33024 35776 39936 44032 53248 53664 66048 71552 79872 88064 107328 132096 143104 159744 176128 214656 264192 286208 429312 528384 572416 858624 1144832 1717248 2289664 3434496 6868992