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80061026256 = 24321921540109
BaseRepresentation
bin100101010010000000…
…0100100111111010000
321122122120221112021200
41022210000210333100
52302431110320011
6100440213351200
75532662331501
oct1124400447720
9248576845250
1080061026256
1130a543a9002
1213624338500
13771b980c23
143c36d02ba8
152138a25856
hex12a4024fd0

80061026256 has 90 divisors (see below), whose sum is σ = 236473109730. Its totient is φ = 25282412928.

The previous prime is 80061026249. The next prime is 80061026257. The reversal of 80061026256 is 65262016008.

It can be written as a sum of positive squares in only one way, i.e., 79287296400 + 773729856 = 281580^2 + 27816^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80061026256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80061026257) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 718071 + ... + 822038.

It is an arithmetic number, because the mean of its divisors is an integer number (2627478997).

Almost surely, 280061026256 is an apocalyptic number.

It is an amenable number.

80061026256 is an abundant number, since it is smaller than the sum of its proper divisors (156412083474).

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

80061026256 is a wasteful number, since it uses less digits than its factorization.

80061026256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540161 (or 1540133 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 80061026256 in words is "eighty billion, sixty-one million, twenty-six thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 36 38 48 57 72 76 114 144 152 171 228 304 342 361 456 684 722 912 1083 1368 1444 2166 2736 2888 3249 4332 5776 6498 8664 12996 17328 25992 51984 1540109 3080218 4620327 6160436 9240654 12320872 13860981 18481308 24641744 27721962 29262071 36962616 55443924 58524142 73925232 87786213 110887848 117048284 175572426 221775696 234096568 263358639 351144852 468193136 526717278 555979349 702289704 1053434556 1111958698 1404579408 1667938047 2106869112 2223917396 3335876094 4213738224 4447834792 5003814141 6671752188 8895669584 10007628282 13343504376 20015256564 26687008752 40030513128 80061026256