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385810801 = 1722694753
BaseRepresentation
bin10110111111110…
…000000101110001
3222212222012220221
4112333300011301
51242231421201
6102141133041
712363223555
oct2677600561
9885865827
10385810801
11188864402
12a925a181
1361c1401c
143934d865
1523d0e4a1
hex16ff0171

385810801 has 4 divisors (see below), whose sum is σ = 408505572. Its totient is φ = 363116032.

The previous prime is 385810793. The next prime is 385810811. The reversal of 385810801 is 108018583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108018583 = 751143833.

It can be written as a sum of positive squares in 2 ways, for example, as 320589025 + 65221776 = 17905^2 + 8076^2 .

It is a cyclic number.

It is not a de Polignac number, because 385810801 - 23 = 385810793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385810811) 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, 11347360 + ... + 11347393.

It is an arithmetic number, because the mean of its divisors is an integer number (102126393).

Almost surely, 2385810801 is an apocalyptic number.

It is an amenable number.

385810801 is a deficient number, since it is larger than the sum of its proper divisors (22694771).

385810801 is a wasteful number, since it uses less digits than its factorization.

385810801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22694770.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 385810801 is about 19642.0671264508. The cubic root of 385810801 is about 727.9889611346.

The spelling of 385810801 in words is "three hundred eighty-five million, eight hundred ten thousand, eight hundred one".

Divisors: 1 17 22694753 385810801