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196530397 = 743165141
BaseRepresentation
bin10111011011011…
…01000011011101
3111200210210000121
423231231003131
5400302433042
631300154541
74604323630
oct1355550335
9450723017
10196530397
11a0a33218
1255998a51
1331940c9b
141c15bc17
15123c1367
hexbb6d0dd

196530397 has 8 divisors (see below), whose sum is σ = 225130752. Its totient is φ = 168061200.

The previous prime is 196530371. The next prime is 196530407. The reversal of 196530397 is 793035691.

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 196530397 - 215 = 196497629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196530317) 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 7 ways as a sum of consecutive naturals, for example, 29554 + ... + 35587.

It is an arithmetic number, because the mean of its divisors is an integer number (28141344).

Almost surely, 2196530397 is an apocalyptic number.

It is an amenable number.

196530397 is a deficient number, since it is larger than the sum of its proper divisors (28600355).

196530397 is an equidigital number, since it uses as much as digits as its factorization.

196530397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65579.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 196530397 is about 14018.9299520327. The cubic root of 196530397 is about 581.4020746419.

The spelling of 196530397 in words is "one hundred ninety-six million, five hundred thirty thousand, three hundred ninety-seven".

Divisors: 1 7 431 3017 65141 455987 28075771 196530397