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85241907738 = 23313971251827
BaseRepresentation
bin100111101100011010…
…0000100101000011010
322011000122200120121000
41033120310010220122
52344033412021423
6103054245525430
76105242155311
oct1173064045032
9264018616530
1085241907738
113317291aa39
121462b413876
138066131980
1441a900b278
15233d7ab843
hex13d8d04a1a

85241907738 has 64 divisors (see below), whose sum is σ = 206100961920. Its totient is φ = 25957863936.

The previous prime is 85241907733. The next prime is 85241907757. The reversal of 85241907738 is 83770914258.

It is a happy number.

85241907738 is a `hidden beast` number, since 8 + 524 + 19 + 0 + 77 + 38 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (85241907733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 557820 + ... + 694007.

It is an arithmetic number, because the mean of its divisors is an integer number (3220327530).

Almost surely, 285241907738 is an apocalyptic number.

85241907738 is an abundant number, since it is smaller than the sum of its proper divisors (120859054182).

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

85241907738 is a wasteful number, since it uses less digits than its factorization.

85241907738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251948 (or 1251942 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 85241907738 in words is "eighty-five billion, two hundred forty-one million, nine hundred seven thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 97 117 194 234 291 351 582 702 873 1261 1746 2522 2619 3783 5238 7566 11349 22698 34047 68094 1251827 2503654 3755481 7510962 11266443 16273751 22532886 32547502 33799329 48821253 67598658 97642506 121427219 146463759 242854438 292927518 364281657 439391277 728563314 878782554 1092844971 1578553847 2185689942 3157107694 3278534913 4735661541 6557069826 9471323082 14206984623 28413969246 42620953869 85241907738