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801705031 = 4095093851
BaseRepresentation
bin101111110010010…
…000110001000111
32001212112211112221
4233302100301013
53120214030111
6211315153211
725603244311
oct5762206107
92055484487
10801705031
113815a5946
121a45a5807
13ca12bc9a
14786907b1
154a5b2371
hex2fc90c47

801705031 has 8 divisors (see below), whose sum is σ = 805453200. Its totient is φ = 797966400.

The previous prime is 801705013. The next prime is 801705059. The reversal of 801705031 is 130507108.

801705031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 801705031 - 25 = 801704999 is a prime.

It is a super-2 number, since 2×8017050312 = 1285461913461421922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 801704987 and 801705005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801705071) 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, 206256 + ... + 210106.

It is an arithmetic number, because the mean of its divisors is an integer number (100681650).

Almost surely, 2801705031 is an apocalyptic number.

801705031 is a deficient number, since it is larger than the sum of its proper divisors (3748169).

801705031 is a wasteful number, since it uses less digits than its factorization.

801705031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 801705031 is about 28314.3961793290. The cubic root of 801705031 is about 928.9768031493.

The spelling of 801705031 in words is "eight hundred one million, seven hundred five thousand, thirty-one".

Divisors: 1 409 509 3851 208181 1575059 1960159 801705031