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442704903 = 31071638461
BaseRepresentation
bin11010011000110…
…010010000000111
31010212000201221220
4122120302100013
51401313024103
6111532411423
713653633564
oct3230622007
91125021856
10442704903
11207993823
12104316b73
1370944384
1442b1d86b
1528cebc53
hex1a632407

442704903 has 16 divisors (see below), whose sum is σ = 599515776. Its totient is φ = 290550240.

The previous prime is 442704833. The next prime is 442704929. The reversal of 442704903 is 309407244.

It is not a de Polignac number, because 442704903 - 222 = 438510599 is a prime.

It is a super-2 number, since 2×4427049032 = 391975262280478818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442704953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48093 + ... + 56553.

It is an arithmetic number, because the mean of its divisors is an integer number (37469736).

Almost surely, 2442704903 is an apocalyptic number.

442704903 is a deficient number, since it is larger than the sum of its proper divisors (156810873).

442704903 is a wasteful number, since it uses less digits than its factorization.

442704903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 442704903 is about 21040.5537712295. The cubic root of 442704903 is about 762.1458876371.

The spelling of 442704903 in words is "four hundred forty-two million, seven hundred four thousand, nine hundred three".

Divisors: 1 3 107 163 321 489 8461 17441 25383 52323 905327 1379143 2715981 4137429 147568301 442704903