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80743068 = 2235711867
BaseRepresentation
bin1001101000000…
…00101010011100
312121221011200000
410310000222130
5131132234233
612002334300
72000206350
oct464005234
9177834600
1080743068
114163950a
122305a390
1313960683
14aa1b460
15714dd13
hex4d00a9c

80743068 has 72 divisors (see below), whose sum is σ = 241917312. Its totient is φ = 23067504.

The previous prime is 80743067. The next prime is 80743073. The reversal of 80743068 is 86034708.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80743067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 871 + ... + 12737.

Almost surely, 280743068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80743068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120958656).

80743068 is an abundant number, since it is smaller than the sum of its proper divisors (161174244).

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

80743068 is a wasteful number, since it uses less digits than its factorization.

80743068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11893 (or 11879 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 80743068 is about 8985.7146627299. The cubic root of 80743068 is about 432.2169049638.

The spelling of 80743068 in words is "eighty million, seven hundred forty-three thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 243 252 324 378 486 567 756 972 1134 1701 2268 3402 6804 11867 23734 35601 47468 71202 83069 106803 142404 166138 213606 249207 320409 332276 427212 498414 640818 747621 961227 996828 1281636 1495242 1922454 2242863 2883681 2990484 3844908 4485726 5767362 6728589 8971452 11534724 13457178 20185767 26914356 40371534 80743068