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80743212 = 223211203897
BaseRepresentation
bin1001101000000…
…00101100101100
312121221011212100
410310000230230
5131132240322
612002335100
72000206644
oct464005454
9177834770
1080743212
1141639630
122305a490
1313960764
14aa1b524
15714ddac
hex4d00b2c

80743212 has 36 divisors (see below), whose sum is σ = 222656616. Its totient is φ = 24467520.

The previous prime is 80743193. The next prime is 80743231. The reversal of 80743212 is 21234708.

It is an interprime number because it is at equal distance from previous prime (80743193) and next prime (80743231).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101553 + ... + 102344.

It is an arithmetic number, because the mean of its divisors is an integer number (6184906).

Almost surely, 280743212 is an apocalyptic number.

It is an amenable number.

80743212 is an abundant number, since it is smaller than the sum of its proper divisors (141913404).

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

80743212 is a wasteful number, since it uses less digits than its factorization.

80743212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203918 (or 203913 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 80743212 is about 8985.7226754446. The cubic root of 80743212 is about 432.2171619072.

The spelling of 80743212 in words is "eighty million, seven hundred forty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 203897 407794 611691 815588 1223382 1835073 2242867 2446764 3670146 4485734 6728601 7340292 8971468 13457202 20185803 26914404 40371606 80743212