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197755201 = 7241117223
BaseRepresentation
bin10111100100110…
…00000101000001
3111210010000010201
423302120011001
5401111131301
631342325201
74620614530
oct1362300501
9453100121
10197755201
11a169a456
1256289801
1331c7c617
141c39a317
1512564201
hexbc98141

197755201 has 8 divisors (see below), whose sum is σ = 226945664. Its totient is φ = 168799680.

The previous prime is 197755193. The next prime is 197755213. The reversal of 197755201 is 102557791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197755201 - 23 = 197755193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197755291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56925 + ... + 60298.

It is an arithmetic number, because the mean of its divisors is an integer number (28368208).

Almost surely, 2197755201 is an apocalyptic number.

It is an amenable number.

197755201 is a deficient number, since it is larger than the sum of its proper divisors (29190463).

197755201 is a wasteful number, since it uses less digits than its factorization.

197755201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117471.

The product of its (nonzero) digits is 22050, while the sum is 37.

The square root of 197755201 is about 14062.5460354802. The cubic root of 197755201 is about 582.6073663585.

It can be divided in two parts, 19775 and 5201, that added together give a triangular number (24976 = T223).

The spelling of 197755201 in words is "one hundred ninety-seven million, seven hundred fifty-five thousand, two hundred one".

Divisors: 1 7 241 1687 117223 820561 28250743 197755201