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196287650 = 25213311971
BaseRepresentation
bin10111011001100…
…01110010100010
3111200100110000222
423230301302202
5400222201100
631251043042
74602263126
oct1354616242
9450313028
10196287650
11a08878a9
12558a0482
1331887650
141c0d7586
1512374485
hexbb31ca2

196287650 has 48 divisors (see below), whose sum is σ = 394849728. Its totient is φ = 72168000.

The previous prime is 196287643. The next prime is 196287659. The reversal of 196287650 is 56782691.

196287650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (196287659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201665 + ... + 202635.

It is an arithmetic number, because the mean of its divisors is an integer number (8226036).

Almost surely, 2196287650 is an apocalyptic number.

196287650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196287650 is an abundant number, since it is smaller than the sum of its proper divisors (198562078).

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

196287650 is a wasteful number, since it uses less digits than its factorization.

196287650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 196287650 is about 14010.2694478015. The cubic root of 196287650 is about 581.1626006485.

The spelling of 196287650 in words is "one hundred ninety-six million, two hundred eighty-seven thousand, six hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 311 325 622 650 971 1555 1942 3110 4043 4855 7775 8086 9710 12623 15550 20215 24275 25246 40430 48550 63115 101075 126230 202150 301981 315575 603962 631150 1509905 3019810 3925753 7549525 7851506 15099050 19628765 39257530 98143825 196287650