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61068100906 = 2192369871969
BaseRepresentation
bin111000110111111100…
…010100010100101010
312211121221101221202001
4320313330110110222
52000031413212111
644015421201214
74261216202341
oct706774242452
9184557357661
1061068100906
112399839508a
12ba0370020a
1359b2b1c667
142d5468ab58
1518c63d71c1
hexe37f1452a

61068100906 has 16 divisors (see below), whose sum is σ = 100615636800. Its totient is φ = 27669299328.

The previous prime is 61068100903. The next prime is 61068100943. The reversal of 61068100906 is 60900186016.

It is not an unprimeable number, because it can be changed into a prime (61068100901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34935111 + ... + 34936858.

It is an arithmetic number, because the mean of its divisors is an integer number (6288477300).

Almost surely, 261068100906 is an apocalyptic number.

61068100906 is a deficient number, since it is larger than the sum of its proper divisors (39547535894).

61068100906 is a wasteful number, since it uses less digits than its factorization.

61068100906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69872013.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 61068100906 in words is "sixty-one billion, sixty-eight million, one hundred thousand, nine hundred six".

Divisors: 1 2 19 23 38 46 437 874 69871969 139743938 1327567411 1607055287 2655134822 3214110574 30534050453 61068100906