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80377645 = 5151110639
BaseRepresentation
bin1001100101001…
…11011100101101
312121020121101211
410302213130231
5131034041040
611550434421
71664125105
oct462473455
9177217354
1080377645
1141409a07
1222b02a11
131386324a
14a964205
1570ca8ea
hex4ca772d

80377645 has 8 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 64253520.

The previous prime is 80377631. The next prime is 80377667. The reversal of 80377645 is 54677308.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80377645 - 29 = 80377133 is a prime.

It is a super-3 number, since 3×803776453 (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80377598 and 80377607.

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, 2236 + ... + 12874.

It is an arithmetic number, because the mean of its divisors is an integer number (12065760).

Almost surely, 280377645 is an apocalyptic number.

It is an amenable number.

80377645 is a deficient number, since it is larger than the sum of its proper divisors (16148435).

80377645 is a wasteful number, since it uses less digits than its factorization.

80377645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12155.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 80377645 is about 8965.3580519687. The cubic root of 80377645 is about 431.5638835071.

The spelling of 80377645 in words is "eighty million, three hundred seventy-seven thousand, six hundred forty-five".

Divisors: 1 5 1511 7555 10639 53195 16075529 80377645