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3051919806 = 2313293171613
BaseRepresentation
bin1011010111101000…
…1001100110111110
321212200201120220220
42311322021212332
522222242413211
61222501122210
7135425614245
oct26572114676
97780646826
103051919806
111326802581
127120b9366
13398392710
1420d47d95c
1512cdec806
hexb5e899be

3051919806 has 128 divisors (see below), whose sum is σ = 7129866240. Its totient is φ = 863654400.

The previous prime is 3051919799. The next prime is 3051919807. The reversal of 3051919806 is 6089191503.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3051919807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4978356 + ... + 4978968.

It is an arithmetic number, because the mean of its divisors is an integer number (55702080).

Almost surely, 23051919806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3051919806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3564933120).

3051919806 is an abundant number, since it is smaller than the sum of its proper divisors (4077946434).

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

3051919806 is a wasteful number, since it uses less digits than its factorization.

3051919806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 3051919806 is about 55244.1834585325. The cubic root of 3051919806 is about 1450.5221751497.

The spelling of 3051919806 in words is "three billion, fifty-one million, nine hundred nineteen thousand, eight hundred six".

Divisors: 1 2 3 6 13 26 29 31 39 58 62 71 78 87 93 142 174 186 213 377 403 426 613 754 806 899 923 1131 1209 1226 1798 1839 1846 2059 2201 2262 2418 2697 2769 3678 4118 4402 5394 5538 6177 6603 7969 11687 12354 13206 15938 17777 19003 23374 23907 26767 28613 35061 35554 38006 43523 47814 53331 53534 57009 57226 63829 70122 80301 85839 87046 106662 114018 127658 130569 160602 171678 191487 231101 247039 261138 382974 462202 494078 551087 565799 693303 741117 829777 1102174 1131598 1262167 1349213 1386606 1482234 1653261 1659554 1697397 2489331 2524334 2698426 3306522 3394794 3786501 4047639 4978662 7164131 7573002 8095278 14328262 16408171 17539769 21492393 32816342 35079538 39127177 42984786 49224513 52619307 78254354 98449026 105238614 117381531 234763062 508653301 1017306602 1525959903 3051919806