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385296080 = 24513370477
BaseRepresentation
bin10110111101110…
…010011011010000
3222212000001212012
4112331302123100
51242113433310
6102122122052
712355651121
oct2675623320
9885001765
10385296080
11188542714
12a9050328
1361a93960
1439258048
1523c5bc05
hex16f726d0

385296080 has 40 divisors (see below), whose sum is σ = 964724712. Its totient is φ = 142262784.

The previous prime is 385296077. The next prime is 385296089. The reversal of 385296080 is 80692583.

It can be written as a sum of positive squares in 4 ways, for example, as 1449616 + 383846464 = 1204^2 + 19592^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385296089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184199 + ... + 186278.

Almost surely, 2385296080 is an apocalyptic number.

It is an amenable number.

385296080 is an abundant number, since it is smaller than the sum of its proper divisors (579428632).

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

385296080 is a wasteful number, since it uses less digits than its factorization.

385296080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370503 (or 370497 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 385296080 is about 19628.9602373636. The cubic root of 385296080 is about 727.6650735656.

The spelling of 385296080 in words is "three hundred eighty-five million, two hundred ninety-six thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 370477 740954 1481908 1852385 2963816 3704770 4816201 5927632 7409540 9632402 14819080 19264804 24081005 29638160 38529608 48162010 77059216 96324020 192648040 385296080