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197995050 = 233521167199
BaseRepresentation
bin10111100110100…
…10101000101010
3111210120012011000
423303102220222
5401141320200
631351415430
74622634021
oct1363225052
9453505130
10197995050
11a1843680
1256384576
1332034846
141c41d8b8
15125b0300
hexbcd2a2a

197995050 has 192 divisors, whose sum is σ = 607104000. Its totient is φ = 47044800.

The previous prime is 197995013. The next prime is 197995051. The reversal of 197995050 is 50599791.

197995050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

197995050 is a nontrivial binomial coefficient, being equal to C(19900, 2).

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

It is a junction number, because it is equal to n+sod(n) for n = 197994987 and 197995005.

It is not an unprimeable number, because it can be changed into a prime (197995051) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 994851 + ... + 995049.

It is an arithmetic number, because the mean of its divisors is an integer number (3162000).

Almost surely, 2197995050 is an apocalyptic number.

197995050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197995050 is the 19899-th triangular number and also the 9950-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197995050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303552000).

197995050 is an abundant number, since it is smaller than the sum of its proper divisors (409108950).

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

197995050 is a wasteful number, since it uses less digits than its factorization.

197995050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 127575, while the sum is 45.

The square root of 197995050 is about 14071.0713877800. The cubic root of 197995050 is about 582.8428112208.

The spelling of 197995050 in words is "one hundred ninety-seven million, nine hundred ninety-five thousand, fifty".