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80469390 = 2352682313
BaseRepresentation
bin1001100101111…
…01110110001110
312121102021020210
410302331312032
5131100010030
611552423250
71664656431
oct462756616
9177367223
1080469390
1141471931
1222b47b26
1313895c31
14a989818
1570e7bb0
hex4cbdd8e

80469390 has 16 divisors (see below), whose sum is σ = 193126608. Its totient is φ = 21458496.

The previous prime is 80469377. The next prime is 80469401. The reversal of 80469390 is 9396408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341127 + ... + 1341186.

It is an arithmetic number, because the mean of its divisors is an integer number (12070413).

Almost surely, 280469390 is an apocalyptic number.

80469390 is an abundant number, since it is smaller than the sum of its proper divisors (112657218).

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

80469390 is a wasteful number, since it uses less digits than its factorization.

80469390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682323.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 80469390 is about 8970.4732316640. The cubic root of 80469390 is about 431.7280202459.

The spelling of 80469390 in words is "eighty million, four hundred sixty-nine thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 2682313 5364626 8046939 13411565 16093878 26823130 40234695 80469390