Search a number
-
+
80292840 = 2335669107
BaseRepresentation
bin1001100100100…
…10101111101000
312121002022001220
410302102233220
5131023332330
611544542040
71663322625
oct462225750
9177068056
1080292840
1141361221
1222a81920
1313833774
14a94134c
1570b0710
hex4c92be8

80292840 has 32 divisors (see below), whose sum is σ = 240878880. Its totient is φ = 21411392.

The previous prime is 80292833. The next prime is 80292847. The reversal of 80292840 is 4829208.

It is an interprime number because it is at equal distance from previous prime (80292833) and next prime (80292847).

It is not an unprimeable number, because it can be changed into a prime (80292847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334434 + ... + 334673.

It is an arithmetic number, because the mean of its divisors is an integer number (7527465).

Almost surely, 280292840 is an apocalyptic number.

It is an amenable number.

80292840 is an abundant number, since it is smaller than the sum of its proper divisors (160586040).

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

80292840 is a wasteful number, since it uses less digits than its factorization.

80292840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669121 (or 669117 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 80292840 is about 8960.6272101901. The cubic root of 80292840 is about 431.4120516793.

The spelling of 80292840 in words is "eighty million, two hundred ninety-two thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 669107 1338214 2007321 2676428 3345535 4014642 5352856 6691070 8029284 10036605 13382140 16058568 20073210 26764280 40146420 80292840