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1969812006 = 231073179679
BaseRepresentation
bin111010101101000…
…1111001000100110
312002021112211002020
41311122033020212
513013232441011
6523243524010
766546061101
oct16532171046
95067484066
101969812006
119209a8a08
1246b829606
13255137946
1414987b738
15b7ded006
hex7568f226

1969812006 has 32 divisors (see below), whose sum is σ = 3989399040. Its totient is φ = 648348576.

The previous prime is 1969811999. The next prime is 1969812011. The reversal of 1969812006 is 6002189691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198675 + ... + 208353.

It is an arithmetic number, because the mean of its divisors is an integer number (124668720).

Almost surely, 21969812006 is an apocalyptic number.

1969812006 is an abundant number, since it is smaller than the sum of its proper divisors (2019587034).

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

1969812006 is a wasteful number, since it uses less digits than its factorization.

1969812006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10108.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1969812006 is about 44382.5642116361. The cubic root of 1969812006 is about 1253.5498041828.

The spelling of 1969812006 in words is "one billion, nine hundred sixty-nine million, eight hundred twelve thousand, six".

Divisors: 1 2 3 6 107 214 317 321 634 642 951 1902 9679 19358 29037 33919 58074 67838 101757 203514 1035653 2071306 3068243 3106959 6136486 6213918 9204729 18409458 328302001 656604002 984906003 1969812006