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197425369 = 1771163567
BaseRepresentation
bin10111100010001…
…11100011011001
3111202111020200201
423301013203121
5401020102434
631331302201
74615042111
oct1361074331
9452436621
10197425369
11a1494669
125614a961
1331b9545b
141c312041
15124eb614
hexbc478d9

197425369 has 8 divisors (see below), whose sum is σ = 211984128. Its totient is φ = 183193920.

The previous prime is 197425343. The next prime is 197425411. The reversal of 197425369 is 963524791.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 197425369 - 225 = 163870937 is a prime.

It is a super-2 number, since 2×1974253692 = 77953552649572322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197425309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80577 + ... + 82990.

It is an arithmetic number, because the mean of its divisors is an integer number (26498016).

Almost surely, 2197425369 is an apocalyptic number.

It is an amenable number.

197425369 is a deficient number, since it is larger than the sum of its proper divisors (14558759).

197425369 is a wasteful number, since it uses less digits than its factorization.

197425369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163655.

The product of its digits is 408240, while the sum is 46.

The square root of 197425369 is about 14050.8138198469. The cubic root of 197425369 is about 582.2832796666.

The spelling of 197425369 in words is "one hundred ninety-seven million, four hundred twenty-five thousand, three hundred sixty-nine".

Divisors: 1 17 71 1207 163567 2780639 11613257 197425369