Search a number
-
+
80627642850 = 23521928290401
BaseRepresentation
bin100101100010111001…
…0000011000111100010
321201010002010122010110
41023011302003013202
52310111134032400
6101012334112150
75553012441066
oct1130562030742
9251102118113
1080627642850
1131215225487
121376204b656
1377ac18b811
143c8c279aa6
15216d64be50
hex12c5c831e2

80627642850 has 48 divisors (see below), whose sum is σ = 210480590880. Its totient is φ = 20369088000.

The previous prime is 80627642833. The next prime is 80627642867. The reversal of 80627642850 is 5824672608.

It is an interprime number because it is at equal distance from previous prime (80627642833) and next prime (80627642867).

It is a super-2 number, since 2×806276428502 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80627642850.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14142351 + ... + 14148050.

It is an arithmetic number, because the mean of its divisors is an integer number (4385012310).

Almost surely, 280627642850 is an apocalyptic number.

80627642850 is an abundant number, since it is smaller than the sum of its proper divisors (129852948030).

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

80627642850 is a wasteful number, since it uses less digits than its factorization.

80627642850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28290435 (or 28290430 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 80627642850 in words is "eighty billion, six hundred twenty-seven million, six hundred forty-two thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 19 25 30 38 50 57 75 95 114 150 190 285 475 570 950 1425 2850 28290401 56580802 84871203 141452005 169742406 282904010 424356015 537517619 707260025 848712030 1075035238 1414520050 1612552857 2121780075 2687588095 3225105714 4243560150 5375176190 8062764285 13437940475 16125528570 26875880950 40313821425 80627642850