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86072980 = 225747103127
BaseRepresentation
bin1010010000101…
…01111010010100
312222221221221011
411020111322110
5134013313410
612312502004
72063415430
oct510257224
9188857834
1086072980
11446499a4
12249aa904
1314aa8676
14b6079c0
15785318a
hex5215e94

86072980 has 96 divisors (see below), whose sum is σ = 214695936. Its totient is φ = 28377216.

The previous prime is 86072977. The next prime is 86072999. The reversal of 86072980 is 8927068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677677 + ... + 677803.

It is an arithmetic number, because the mean of its divisors is an integer number (2236416).

Almost surely, 286072980 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 86072980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107347968).

86072980 is an abundant number, since it is smaller than the sum of its proper divisors (128622956).

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

86072980 is a wasteful number, since it uses less digits than its factorization.

86072980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 86072980 is about 9277.5524789677. The cubic root of 86072980 is about 441.5253191138.

The spelling of 86072980 in words is "eighty-six million, seventy-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 47 70 94 103 127 140 188 206 235 254 329 412 470 508 515 635 658 721 889 940 1030 1270 1316 1442 1645 1778 2060 2540 2884 3290 3556 3605 4445 4841 5969 6580 7210 8890 9682 11938 13081 14420 17780 19364 23876 24205 26162 29845 33887 41783 48410 52324 59690 65405 67774 83566 91567 96820 119380 130810 135548 167132 169435 183134 208915 261620 338870 366268 417830 457835 614807 677740 835660 915670 1229614 1831340 2459228 3074035 4303649 6148070 8607298 12296140 17214596 21518245 43036490 86072980