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80932764 = 223113773227
BaseRepresentation
bin1001101001011…
…10111110011100
312122021210212210
410310232332130
5131204322024
612010400420
72001626403
oct464567634
9178253783
1080932764
1141758a90
1223130110
13139c8b13
14aa6a63a
15718a129
hex4d2ef9c

80932764 has 96 divisors (see below), whose sum is σ = 215421696. Its totient is φ = 23431680.

The previous prime is 80932763. The next prime is 80932769. The reversal of 80932764 is 46723908.

It is a super-2 number, since 2×809327642 = 13100224577359392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80932763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356419 + ... + 356645.

It is an arithmetic number, because the mean of its divisors is an integer number (2243976).

Almost surely, 280932764 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 80932764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107710848).

80932764 is an abundant number, since it is smaller than the sum of its proper divisors (134488932).

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

80932764 is a wasteful number, since it uses less digits than its factorization.

80932764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 80932764 is about 8996.2638911939. The cubic root of 80932764 is about 432.5551205545. Note that the first 3 decimals are identical.

Subtracting from 80932764 its reverse (46723908), we obtain a triangular number (34208856 = T8271).

The spelling of 80932764 in words is "eighty million, nine hundred thirty-two thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 11 12 22 33 37 44 66 73 74 111 132 146 148 219 222 227 292 407 438 444 454 681 803 814 876 908 1221 1362 1606 1628 2409 2442 2497 2701 2724 3212 4818 4884 4994 5402 7491 8103 8399 9636 9988 10804 14982 16206 16571 16798 25197 29711 29964 32412 33142 33596 49713 50394 59422 66284 89133 92389 99426 100788 118844 178266 182281 184778 198852 277167 356532 364562 369556 546843 554334 613127 729124 1093686 1108668 1226254 1839381 2187372 2452508 3678762 6744397 7357524 13488794 20233191 26977588 40466382 80932764