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385055501 = 1981124989
BaseRepresentation
bin10110111100110…
…111101100001101
3222211112211211212
4112330313230031
51242033234001
6102113024205
712353626535
oct2674675415
9884484755
10385055501
11188398996
12a8b55065
1361a0b2bc
14391d44c5
1523c107bb
hex16f37b0d

385055501 has 8 divisors (see below), whose sum is σ = 405837600. Its totient is φ = 364325040.

The previous prime is 385055467. The next prime is 385055513. The reversal of 385055501 is 105550583.

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

It is a cyclic number.

It is not a de Polignac number, because 385055501 - 222 = 380861197 is a prime.

It is a super-2 number, since 2×3850555012 = 296535477700722002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385055551) 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, 2915 + ... + 27903.

It is an arithmetic number, because the mean of its divisors is an integer number (50729700).

Almost surely, 2385055501 is an apocalyptic number.

It is an amenable number.

385055501 is a deficient number, since it is larger than the sum of its proper divisors (20782099).

385055501 is a wasteful number, since it uses less digits than its factorization.

385055501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25819.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 385055501 is about 19622.8311158202. The cubic root of 385055501 is about 727.5135905949.

The spelling of 385055501 in words is "three hundred eighty-five million, fifty-five thousand, five hundred one".

Divisors: 1 19 811 15409 24989 474791 20266079 385055501