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196633381 = 7136720549
BaseRepresentation
bin10111011100001…
…10001100100101
3111201000000021211
423232012030211
5400314232011
631302311421
74605233110
oct1356061445
9451000254
10196633381
11a0aa362a
1255a28571
1331978b19
141c187577
15123e1b21
hexbb86325

196633381 has 8 divisors (see below), whose sum is σ = 224899200. Its totient is φ = 168411408.

The previous prime is 196633379. The next prime is 196633433. The reversal of 196633381 is 183336691.

196633381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 196633381 - 21 = 196633379 is a prime.

It is a super-2 number, since 2×1966333812 = 77329373046982322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196633301) 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, 706 + ... + 19843.

It is an arithmetic number, because the mean of its divisors is an integer number (28112400).

Almost surely, 2196633381 is an apocalyptic number.

It is an amenable number.

196633381 is a deficient number, since it is larger than the sum of its proper divisors (28265819).

196633381 is a wasteful number, since it uses less digits than its factorization.

196633381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21923.

The product of its digits is 69984, while the sum is 40.

The square root of 196633381 is about 14022.6025045282. The cubic root of 196633381 is about 581.5036105143.

The spelling of 196633381 in words is "one hundred ninety-six million, six hundred thirty-three thousand, three hundred eighty-one".

Divisors: 1 7 1367 9569 20549 143843 28090483 196633381