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196786481 = 3110162851
BaseRepresentation
bin10111011101010…
…11100100110001
3111201021210022012
423232223210301
5400334131411
631305452305
74606441343
oct1356534461
9451253265
10196786481
11a1098661
1255aa1095
1331a00708
141c1c7293
151242218b
hexbbab931

196786481 has 8 divisors (see below), whose sum is σ = 205148928. Its totient is φ = 188550000.

The previous prime is 196786453. The next prime is 196786483. The reversal of 196786481 is 184687691.

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 196786481 - 218 = 196524337 is a prime.

It is a super-2 number, since 2×1967864812 = 77449838208726722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196786483) 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, 28295 + ... + 34556.

It is an arithmetic number, because the mean of its divisors is an integer number (25643616).

Almost surely, 2196786481 is an apocalyptic number.

It is an amenable number.

196786481 is a deficient number, since it is larger than the sum of its proper divisors (8362447).

196786481 is a wasteful number, since it uses less digits than its factorization.

196786481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62983.

The product of its digits is 580608, while the sum is 50.

The square root of 196786481 is about 14028.0604860401. The cubic root of 196786481 is about 581.6544921641.

The spelling of 196786481 in words is "one hundred ninety-six million, seven hundred eighty-six thousand, four hundred eighty-one".

Divisors: 1 31 101 3131 62851 1948381 6347951 196786481