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80852340 = 223517312557
BaseRepresentation
bin1001101000110…
…11010101110100
312122010201120010
410310123111310
5131144233330
612004540220
72001143052
oct464332564
9178121503
1080852340
1141703618
12230b1670
131399b32a
14aa491d2
1571713b0
hex4d1b574

80852340 has 96 divisors (see below), whose sum is σ = 247532544. Its totient is φ = 19630080.

The previous prime is 80852339. The next prime is 80852351. The reversal of 80852340 is 4325808.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 80852298 and 80852307.

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, 30342 + ... + 32898.

It is an arithmetic number, because the mean of its divisors is an integer number (2578464).

Almost surely, 280852340 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 80852340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123766272).

80852340 is an abundant number, since it is smaller than the sum of its proper divisors (166680204).

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

80852340 is a wasteful number, since it uses less digits than its factorization.

80852340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617 (or 2615 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 80852340 is about 8991.7929246619. The cubic root of 80852340 is about 432.4117944127.

The spelling of 80852340 in words is "eighty million, eight hundred fifty-two thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 31 34 51 60 62 68 85 93 102 124 155 170 186 204 255 310 340 372 465 510 527 620 930 1020 1054 1581 1860 2108 2557 2635 3162 5114 5270 6324 7671 7905 10228 10540 12785 15342 15810 25570 30684 31620 38355 43469 51140 76710 79267 86938 130407 153420 158534 173876 217345 237801 260814 317068 396335 434690 475602 521628 652035 792670 869380 951204 1189005 1304070 1347539 1585340 2378010 2608140 2695078 4042617 4756020 5390156 6737695 8085234 13475390 16170468 20213085 26950780 40426170 80852340