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12161002070 = 257173728601
BaseRepresentation
bin10110101001101101…
…00010101001010110
31011101112001220200002
423110312202221112
5144401204031240
65330420251302
7610234545350
oct132466425126
934345056602
1012161002070
115180628938
122434840b32
1311ba616419
1483516c0d0
154b2974d15
hex2d4da2a56

12161002070 has 16 divisors (see below), whose sum is σ = 25016918688. Its totient is φ = 4169486400.

The previous prime is 12161002039. The next prime is 12161002093. The reversal of 12161002070 is 7020016121.

12161002070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86864231 + ... + 86864370.

It is an arithmetic number, because the mean of its divisors is an integer number (1563557418).

Almost surely, 212161002070 is an apocalyptic number.

12161002070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12161002070 is an abundant number, since it is smaller than the sum of its proper divisors (12855916618).

12161002070 is a wasteful number, since it uses less digits than its factorization.

12161002070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173728615.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 12161002070 its reverse (7020016121), we get a palindrome (19181018191).

The spelling of 12161002070 in words is "twelve billion, one hundred sixty-one million, two thousand, seventy".

Divisors: 1 2 5 7 10 14 35 70 173728601 347457202 868643005 1216100207 1737286010 2432200414 6080501035 12161002070