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80800890 = 2352693363
BaseRepresentation
bin1001101000011…
…10110001111010
312122001002222120
410310032301322
5131141112030
612003502110
72000540052
oct464166172
9178032876
1080800890
11416789a5
1223087936
1313980aa1
14aa34562
157161010
hex4d0ec7a

80800890 has 16 divisors (see below), whose sum is σ = 193922208. Its totient is φ = 21546896.

The previous prime is 80800883. The next prime is 80800891. The reversal of 80800890 is 9800808.

It is not an unprimeable number, because it can be changed into a prime (80800891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346652 + ... + 1346711.

It is an arithmetic number, because the mean of its divisors is an integer number (12120138).

Almost surely, 280800890 is an apocalyptic number.

80800890 is an abundant number, since it is smaller than the sum of its proper divisors (113121318).

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

80800890 is a wasteful number, since it uses less digits than its factorization.

80800890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693373.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 80800890 is about 8988.9315271616. The cubic root of 80800890 is about 432.3200538911.

The spelling of 80800890 in words is "eighty million, eight hundred thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 2693363 5386726 8080089 13466815 16160178 26933630 40400445 80800890