Search a number
-
+
197024980 = 2259851249
BaseRepresentation
bin10111011111001…
…01110011010100
3111201201220110111
423233211303110
5400414244410
631314532404
74611453565
oct1357456324
9451656414
10197024980
11a1240869
1255b97104
1331a85139
141c24a16c
151246cb8a
hexbbe5cd4

197024980 has 12 divisors (see below), whose sum is σ = 413752500. Its totient is φ = 78809984.

The previous prime is 197024921. The next prime is 197024981. The reversal of 197024980 is 89420791.

It can be written as a sum of positive squares in 2 ways, for example, as 67338436 + 129686544 = 8206^2 + 11388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197024981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4925605 + ... + 4925644.

It is an arithmetic number, because the mean of its divisors is an integer number (34479375).

Almost surely, 2197024980 is an apocalyptic number.

197024980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197024980 is an abundant number, since it is smaller than the sum of its proper divisors (216727520).

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

197024980 is a wasteful number, since it uses less digits than its factorization.

197024980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9851258 (or 9851256 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 197024980 is about 14036.5586950648. The cubic root of 197024980 is about 581.8893795891.

The spelling of 197024980 in words is "one hundred ninety-seven million, twenty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 9851249 19702498 39404996 49256245 98512490 197024980