Search a number
-
+
1970131698 = 232195760619
BaseRepresentation
bin111010101101101…
…1101001011110010
312002022011001121200
41311123131023302
513013323203243
6523254432030
766551562123
oct16533351362
95068131550
101970131698
119210a7117
1246b962616
1325521a302
1414992204a
15b7e62ad3
hex756dd2f2

1970131698 has 24 divisors (see below), whose sum is σ = 4493283600. Its totient is φ = 622146744.

The previous prime is 1970131697. The next prime is 1970131703. The reversal of 1970131698 is 8961310791.

It is not an unprimeable number, because it can be changed into a prime (1970131697) 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 11 ways as a sum of consecutive naturals, for example, 2879968 + ... + 2880651.

It is an arithmetic number, because the mean of its divisors is an integer number (187220150).

Almost surely, 21970131698 is an apocalyptic number.

1970131698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1970131698 is an abundant number, since it is smaller than the sum of its proper divisors (2523151902).

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

1970131698 is a wasteful number, since it uses less digits than its factorization.

1970131698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760646 (or 5760643 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 1970131698 is about 44386.1656149751. The cubic root of 1970131698 is about 1253.6176157582.

The spelling of 1970131698 in words is "one billion, nine hundred seventy million, one hundred thirty-one thousand, six hundred ninety-eight".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 5760619 11521238 17281857 34563714 51845571 103691142 109451761 218903522 328355283 656710566 985065849 1970131698