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1297683066 = 231747270689
BaseRepresentation
bin100110101011001…
…0001001001111010
310100102211010111210
41031112101021322
510124201324231
6332433503550
744105060361
oct11526211172
93312733453
101297683066
11606565549
12302711bb6
13178b06504
14c44ba7d8
1578dd3a46
hex4d59127a

1297683066 has 32 divisors (see below), whose sum is σ = 2806513920. Its totient is φ = 398452736.

The previous prime is 1297682999. The next prime is 1297683067. The reversal of 1297683066 is 6603867921.

It is not an unprimeable number, because it can be changed into a prime (1297683067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130551 + ... + 140138.

It is an arithmetic number, because the mean of its divisors is an integer number (87703560).

Almost surely, 21297683066 is an apocalyptic number.

1297683066 is an abundant number, since it is smaller than the sum of its proper divisors (1508830854).

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

1297683066 is a wasteful number, since it uses less digits than its factorization.

1297683066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270758.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 1297683066 is about 36023.3683322368. The cubic root of 1297683066 is about 1090.7441166450.

The spelling of 1297683066 in words is "one billion, two hundred ninety-seven million, six hundred eighty-three thousand, sixty-six".

Divisors: 1 2 3 6 17 34 47 51 94 102 141 282 799 1598 2397 4794 270689 541378 812067 1624134 4601713 9203426 12722383 13805139 25444766 27610278 38167149 76334298 216280511 432561022 648841533 1297683066