Search a number
-
+
190343371770 = 2345234991817
BaseRepresentation
bin1011000101000101011…
…0010101101111111010
3200012022100122010220000
42301101112111233322
511104310400344040
6223235331013430
716515612651636
oct2612126255772
9605270563800
10190343371770
11737a6964512
1230a8173a276
1314c45806c86
1492d97c1dc6
154e407e1130
hex2c51595bfa

190343371770 has 40 divisors (see below), whose sum is σ = 511812179604. Its totient is φ = 50758232256.

The previous prime is 190343371717. The next prime is 190343371787. The reversal of 190343371770 is 77173343091.

It can be written as a sum of positive squares in 2 ways, for example, as 164601415521 + 25741956249 = 405711^2 + 160443^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 117495099 + ... + 117496718.

Almost surely, 2190343371770 is an apocalyptic number.

190343371770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190343371770 is an abundant number, since it is smaller than the sum of its proper divisors (321468807834).

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

190343371770 is a wasteful number, since it uses less digits than its factorization.

190343371770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234991836 (or 234991827 counting only the distinct ones).

The product of its (nonzero) digits is 333396, while the sum is 45.

The spelling of 190343371770 in words is "one hundred ninety billion, three hundred forty-three million, three hundred seventy-one thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 234991817 469983634 704975451 1174959085 1409950902 2114926353 2349918170 3524877255 4229852706 6344779059 7049754510 10574631765 12689558118 19034337177 21149263530 31723895295 38068674354 63447790590 95171685885 190343371770