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29680155431166 = 2335771138287791
BaseRepresentation
bin1101011111110011100110…
…00111110001000011111110
310220002101200001201011222010
412233321303013301003332
512342234424242244131
6143042513012032050
76152214630406662
oct657716307610376
9126071601634863
1029680155431166
119503312a87549
1233b4268002626
131373a991b6a26
147487548628a2
153670b0352b46
hex1afe731f10fe

29680155431166 has 16 divisors (see below), whose sum is σ = 59361970745088. Its totient is φ = 9893108496600.

The previous prime is 29680155431149. The next prime is 29680155431191. The reversal of 29680155431166 is 66113455108692.

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, 68929270 + ... + 69358521.

It is an arithmetic number, because the mean of its divisors is an integer number (3710123171568).

Almost surely, 229680155431166 is an apocalyptic number.

29680155431166 is an abundant number, since it is smaller than the sum of its proper divisors (29681815313922).

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

29680155431166 is a wasteful number, since it uses less digits than its factorization.

29680155431166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138323567.

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 29680155431166 in words is "twenty-nine trillion, six hundred eighty billion, one hundred fifty-five million, four hundred thirty-one thousand, one hundred sixty-six".

Divisors: 1 2 3 6 35771 71542 107313 214626 138287791 276575582 414863373 829726746 4946692571861 9893385143722 14840077715583 29680155431166