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385444501 = 1367442531
BaseRepresentation
bin10110111110010…
…110101010010101
3222212021121110021
4112332112222111
51242133211001
6102125225141
712360136621
oct2676265225
9885247407
10385444501
11188634182
12a91021b1
1361b16390
1439296181
1523c8aba1
hex16f96a95

385444501 has 8 divisors (see below), whose sum is σ = 421290464. Its totient is φ = 350483760.

The previous prime is 385444489. The next prime is 385444523. The reversal of 385444501 is 105444583.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-385444501 is a prime.

It is a super-2 number, since 2×3854445012 = 297134926702278002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385444541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220395 + ... + 222136.

It is an arithmetic number, because the mean of its divisors is an integer number (52661308).

Almost surely, 2385444501 is an apocalyptic number.

It is an amenable number.

385444501 is a deficient number, since it is larger than the sum of its proper divisors (35845963).

385444501 is a wasteful number, since it uses less digits than its factorization.

385444501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442611.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 385444501 is about 19632.7405371741. The cubic root of 385444501 is about 727.7584968823.

The spelling of 385444501 in words is "three hundred eighty-five million, four hundred forty-four thousand, five hundred one".

Divisors: 1 13 67 871 442531 5752903 29649577 385444501