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80305357924 = 2211411712
BaseRepresentation
bin100101011001010010…
…0101000010001100100
321200021121200212022201
41022302210220101210
52303431132423144
6100520342304244
75542020164641
oct1126244502144
9250247625281
1080305357924
113106a310000
1213692128084
13775a48a58c
143c5b544dc8
1521501da1d4
hex12b2928464

80305357924 has 45 divisors (see below), whose sum is σ = 154718979555. Its totient is φ = 36471263400.

The previous prime is 80305357921. The next prime is 80305357933. The reversal of 80305357924 is 42975350308.

The square root of 80305357924 is 283382.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×803053579242 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80305357921) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 68577859 + ... + 68579029.

Almost surely, 280305357924 is an apocalyptic number.

80305357924 is the 283382-nd square number.

It is an amenable number.

80305357924 is a deficient number, since it is larger than the sum of its proper divisors (74413621631).

80305357924 is an frugal number, since it uses more digits than its factorization.

80305357924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 1184 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 80305357924 in words is "eighty billion, three hundred five million, three hundred fifty-seven thousand, nine hundred twenty-four".

Divisors: 1 2 4 11 22 44 121 242 484 1171 1331 2342 2662 4684 5324 12881 14641 25762 29282 51524 58564 141691 283382 566764 1371241 1558601 2742482 3117202 5484964 6234404 15083651 17144611 30167302 34289222 60334604 68578444 165920161 331840322 663680644 1825121771 3650243542 7300487084 20076339481 40152678962 80305357924