Search a number
-
+
80492680 = 2352012317
BaseRepresentation
bin1001100110000…
…11100010001000
312121110110012101
410303003202020
5131101231210
611553123144
71665114352
oct463034210
9177413171
1080492680
1141488384
1222b594b4
13138a3708
14a9940d2
1570eea3a
hex4cc3888

80492680 has 16 divisors (see below), whose sum is σ = 181108620. Its totient is φ = 32197056.

The previous prime is 80492677. The next prime is 80492681. The reversal of 80492680 is 8629408.

It can be written as a sum of positive squares in 2 ways, for example, as 78889924 + 1602756 = 8882^2 + 1266^2 .

It is not an unprimeable number, because it can be changed into a prime (80492681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006119 + ... + 1006198.

Almost surely, 280492680 is an apocalyptic number.

It is an amenable number.

80492680 is an abundant number, since it is smaller than the sum of its proper divisors (100615940).

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

80492680 is a wasteful number, since it uses less digits than its factorization.

80492680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012328 (or 2012324 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80492680 is about 8971.7712855378. The cubic root of 80492680 is about 431.7696674515.

The spelling of 80492680 in words is "eighty million, four hundred ninety-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2012317 4024634 8049268 10061585 16098536 20123170 40246340 80492680