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1969017116 = 221157777557
BaseRepresentation
bin111010101011100…
…1101000100011100
312002020001102200212
41311113031010130
513013032021431
6523214511552
766536240453
oct16527150434
95066042625
101969017116
11920505780
1246b5055b8
13254c19bb1
14149711b9a
15b7ce272b
hex755cd11c

1969017116 has 24 divisors (see below), whose sum is σ = 3765596016. Its totient is φ = 893445120.

The previous prime is 1969017077. The next prime is 1969017131. The reversal of 1969017116 is 6117109691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13391 + ... + 64166.

It is an arithmetic number, because the mean of its divisors is an integer number (156899834).

Almost surely, 21969017116 is an apocalyptic number.

It is an amenable number.

1969017116 is a deficient number, since it is larger than the sum of its proper divisors (1796578900).

1969017116 is a wasteful number, since it uses less digits than its factorization.

1969017116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78149 (or 78147 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 41.

The square root of 1969017116 is about 44373.6083274732. The cubic root of 1969017116 is about 1253.3811640176.

The spelling of 1969017116 in words is "one billion, nine hundred sixty-nine million, seventeen thousand, one hundred sixteen".

Divisors: 1 2 4 11 22 44 577 1154 2308 6347 12694 25388 77557 155114 310228 853127 1706254 3412508 44750389 89500778 179001556 492254279 984508558 1969017116