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196980660 = 2235540531
BaseRepresentation
bin10111011110110…
…10111110110100
3111201122122200000
423233122332310
5400411340120
631313551300
74611210432
oct1357327664
9451578600
10196980660
11a1210538
1255b75530
1331a6ac06
141c237d52
151245e990
hexbbdafb4

196980660 has 72 divisors (see below), whose sum is σ = 619653216. Its totient is φ = 52526880.

The previous prime is 196980647. The next prime is 196980661. The reversal of 196980660 is 66089691.

196980660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196980661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15406 + ... + 25125.

Almost surely, 2196980660 is an apocalyptic number.

196980660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196980660 is an abundant number, since it is smaller than the sum of its proper divisors (422672556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196980660 is a wasteful number, since it uses less digits than its factorization.

196980660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40555 (or 40541 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 196980660 is about 14034.9798717348. The cubic root of 196980660 is about 581.8457450691.

The spelling of 196980660 in words is "one hundred ninety-six million, nine hundred eighty thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 810 972 1215 1620 2430 4860 40531 81062 121593 162124 202655 243186 364779 405310 486372 607965 729558 810620 1094337 1215930 1459116 1823895 2188674 2431860 3283011 3647790 4377348 5471685 6566022 7295580 9849033 10943370 13132044 16415055 19698066 21886740 32830110 39396132 49245165 65660220 98490330 196980660