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1968504068 = 221307376531
BaseRepresentation
bin111010101010100…
…1111110100000100
312002012002100221002
41311111033310010
513012414112233
6523155512432
766532002626
oct16525176404
95065070832
101968504068
11920195273
1246b2b8718
13254a9a50b
1414961ac16
15b7c406e8
hex7554fd04

1968504068 has 12 divisors (see below), whose sum is σ = 3447526992. Its totient is φ = 983496360.

The previous prime is 1968504049. The next prime is 1968504073. The reversal of 1968504068 is 8604058691.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183038 + ... + 193493.

It is an arithmetic number, because the mean of its divisors is an integer number (287293916).

Almost surely, 21968504068 is an apocalyptic number.

It is an amenable number.

1968504068 is a deficient number, since it is larger than the sum of its proper divisors (1479022924).

1968504068 is a wasteful number, since it uses less digits than its factorization.

1968504068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377842 (or 377840 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 1968504068 is about 44367.8269470120. The cubic root of 1968504068 is about 1253.2722940383.

The spelling of 1968504068 in words is "one billion, nine hundred sixty-eight million, five hundred four thousand, sixty-eight".

Divisors: 1 2 4 1307 2614 5228 376531 753062 1506124 492126017 984252034 1968504068