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73380080 = 245917251
BaseRepresentation
bin1000101111110…
…11000011110000
312010002002112202
410113323003300
5122241130310
611140442332
71550502044
oct427730360
9163062482
1073380080
113846a5a4
12206a93a8
1312283187
149a62024
1566973a5
hex45fb0f0

73380080 has 20 divisors (see below), whose sum is σ = 170608872. Its totient is φ = 29352000.

The previous prime is 73380049. The next prime is 73380089. The reversal of 73380080 is 8008337.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×733800802 = 10769272281612800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73380089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458546 + ... + 458705.

Almost surely, 273380080 is an apocalyptic number.

It is an amenable number.

73380080 is an abundant number, since it is smaller than the sum of its proper divisors (97228792).

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

73380080 is a wasteful number, since it uses less digits than its factorization.

73380080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917264 (or 917258 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 73380080 is about 8566.2173682437. The cubic root of 73380080 is about 418.6579992436.

The spelling of 73380080 in words is "seventy-three million, three hundred eighty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 917251 1834502 3669004 4586255 7338008 9172510 14676016 18345020 36690040 73380080