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80968220 = 2255936827
BaseRepresentation
bin1001101001101…
…11101000011100
312122100121111222
410310313220130
5131211440340
612011232512
72002134644
oct464675034
9178317458
1080968220
1141782693
1223148738
1313a0bcb8
14aa79524
1571958b5
hex4d37a1c

80968220 has 24 divisors (see below), whose sum is σ = 170344944. Its totient is φ = 32327936.

The previous prime is 80968219. The next prime is 80968241. The reversal of 80968220 is 2286908.

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, 8447 + ... + 15273.

It is an arithmetic number, because the mean of its divisors is an integer number (7097706).

Almost surely, 280968220 is an apocalyptic number.

It is an amenable number.

80968220 is an abundant number, since it is smaller than the sum of its proper divisors (89376724).

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

80968220 is a wasteful number, since it uses less digits than its factorization.

80968220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7429 (or 7427 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 80968220 is about 8998.2342712334. The cubic root of 80968220 is about 432.6182776515.

The spelling of 80968220 in words is "eighty million, nine hundred sixty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 593 1186 2372 2965 5930 6827 11860 13654 27308 34135 68270 136540 4048411 8096822 16193644 20242055 40484110 80968220