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80073909 = 3226713331
BaseRepresentation
bin1001100010111…
…01010010110101
312120200011202100
410301131102311
5130444331114
611540132313
71661421426
oct461352265
9176604670
1080073909
1141221793
1222997099
1313787c16
14a8c564d
15706a909
hex4c5d4b5

80073909 has 12 divisors (see below), whose sum is σ = 115740352. Its totient is φ = 53346600.

The previous prime is 80073887. The next prime is 80073949. The reversal of 80073909 is 90937008.

It is not a de Polignac number, because 80073909 - 27 = 80073781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80073949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22374 + ... + 25704.

Almost surely, 280073909 is an apocalyptic number.

It is an amenable number.

80073909 is a deficient number, since it is larger than the sum of its proper divisors (35666443).

80073909 is a wasteful number, since it uses less digits than its factorization.

80073909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6008 (or 6005 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 80073909 is about 8948.4025948769. The cubic root of 80073909 is about 431.0195905918.

The spelling of 80073909 in words is "eighty million, seventy-three thousand, nine hundred nine".

Divisors: 1 3 9 2671 3331 8013 9993 24039 29979 8897101 26691303 80073909