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28982661843245 = 51123107773277003
BaseRepresentation
bin1101001011100000011010…
…10000111000100100101101
310210121201022112110201020012
412211300031100320210231
512244322442412440440
6141350241231503005
76050633243626205
oct645601520704455
9123551275421205
1028982661843245
1192645290413a0
12330104a987a65
1313230900b2976
14722aa839b405
15353d8b340e65
hex1a5c0d43892d

28982661843245 has 64 divisors (see below), whose sum is σ = 40012390139904. Its totient is φ = 19947512344320.

The previous prime is 28982661843227. The next prime is 28982661843301. The reversal of 28982661843245 is 54234816628982.

It is not a de Polignac number, because 28982661843245 - 228 = 28982393407789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104490914 + ... + 104767916.

It is an arithmetic number, because the mean of its divisors is an integer number (625193595936).

Almost surely, 228982661843245 is an apocalyptic number.

It is an amenable number.

28982661843245 is a deficient number, since it is larger than the sum of its proper divisors (11029728296659).

28982661843245 is a wasteful number, since it uses less digits than its factorization.

28982661843245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277922.

The product of its digits is 318504960, while the sum is 68.

The spelling of 28982661843245 in words is "twenty-eight trillion, nine hundred eighty-two billion, six hundred sixty-one million, eight hundred forty-three thousand, two hundred forty-five".

Divisors: 1 5 11 23 55 107 115 253 535 773 1177 1265 2461 3865 5885 8503 12305 17779 27071 42515 82711 88895 135355 195569 277003 413555 909821 977845 1385015 1902353 3047033 4549105 6371069 9511765 15235165 20925883 29639321 31855345 70081759 104629415 148196605 214123319 326032531 350408795 681704383 1070616595 1630162655 2355356509 3408521915 4924836337 7498748213 11776782545 22911195133 24624181685 37493741065 54173199707 114555975665 252023146463 270865998535 526957488059 1260115732315 2634787440295 5796532368649 28982661843245