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196042780 = 2259802139
BaseRepresentation
bin10111010111101…
…10000000011100
3111122220000010201
423223312000130
5400141332110
631241513244
74600223203
oct1353660034
9448800121
10196042780
11a072a92a
12557a2824
133180005b
141c07223a
1512326b3a
hexbaf601c

196042780 has 12 divisors (see below), whose sum is σ = 411689880. Its totient is φ = 78417104.

The previous prime is 196042757. The next prime is 196042787. The reversal of 196042780 is 87240691.

196042780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196042787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4901050 + ... + 4901089.

It is an arithmetic number, because the mean of its divisors is an integer number (34307490).

Almost surely, 2196042780 is an apocalyptic number.

196042780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196042780 is an abundant number, since it is smaller than the sum of its proper divisors (215647100).

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

196042780 is a wasteful number, since it uses less digits than its factorization.

196042780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9802148 (or 9802146 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 196042780 is about 14001.5277737824. The cubic root of 196042780 is about 580.9208321619.

The spelling of 196042780 in words is "one hundred ninety-six million, forty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 9802139 19604278 39208556 49010695 98021390 196042780