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1968341956 = 227231692
BaseRepresentation
bin111010101010010…
…1000001111000100
312002011210010112221
41311110220033010
513012343420311
6523152222124
766530426200
oct16524501704
95064703487
101968341956
11920094499
1246b23a944
13254a417a9
141495b7b00
15b7c0c671
hex755283c4

1968341956 has 27 divisors (see below), whose sum is σ = 4008246669. Its totient is φ = 843308928.

The previous prime is 1968341951. The next prime is 1968341971. The reversal of 1968341956 is 6591438691.

The square root of 1968341956 is 44366.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1626831556 + 341510400 = 40334^2 + 18480^2 .

It is not an unprimeable number, because it can be changed into a prime (1968341951) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 619540 + ... + 622708.

Almost surely, 21968341956 is an apocalyptic number.

1968341956 is the 44366-th square number.

It is an amenable number.

1968341956 is an abundant number, since it is smaller than the sum of its proper divisors (2039904713).

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

1968341956 is an frugal number, since it uses more digits than its factorization.

1968341956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356 (or 3178 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The cubic root of 1968341956 is about 1253.2378895618.

The spelling of 1968341956 in words is "one billion, nine hundred sixty-eight million, three hundred forty-one thousand, nine hundred fifty-six".

Divisors: 1 2 4 7 14 28 49 98 196 3169 6338 12676 22183 44366 88732 155281 310562 621124 10042561 20085122 40170244 70297927 140595854 281191708 492085489 984170978 1968341956