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197080401 = 3722415563
BaseRepresentation
bin10111011111100…
…11010101010001
3111201211201111010
423233303111101
5400423033101
631320041133
74612104300
oct1357632521
9451751433
10197080401
11a1279471
12560031a9
1331aa442b
141c262437
151247e2d6
hexbbf3551

197080401 has 24 divisors (see below), whose sum is σ = 306999264. Its totient is φ = 112129920.

The previous prime is 197080397. The next prime is 197080409. The reversal of 197080401 is 104080791.

It is not a de Polignac number, because 197080401 - 22 = 197080397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (197080409) 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 23 ways as a sum of consecutive naturals, for example, 32646 + ... + 38208.

It is an arithmetic number, because the mean of its divisors is an integer number (12791636).

Almost surely, 2197080401 is an apocalyptic number.

It is an amenable number.

197080401 is a deficient number, since it is larger than the sum of its proper divisors (109918863).

197080401 is a wasteful number, since it uses less digits than its factorization.

197080401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821 (or 5814 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 197080401 is about 14038.5327224750. The cubic root of 197080401 is about 581.9439342078.

The spelling of 197080401 in words is "one hundred ninety-seven million, eighty thousand, four hundred one".

Divisors: 1 3 7 21 49 147 241 723 1687 5061 5563 11809 16689 35427 38941 116823 272587 817761 1340683 4022049 9384781 28154343 65693467 197080401