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1352103220 = 225135200397
BaseRepresentation
bin101000010010111…
…0111010100110100
310111020012221221001
41100211313110310
510232114300340
6342100133044
745335454616
oct12045672464
93436187831
101352103220
11634255186
12318997184
1318717b7a0
14cb804db6
157da8329a
hex50977534

1352103220 has 24 divisors (see below), whose sum is σ = 3057834024. Its totient is φ = 499238016.

The previous prime is 1352103209. The next prime is 1352103229. The reversal of 1352103220 is 223012531.

It can be written as a sum of positive squares in 4 ways, for example, as 90859024 + 1261244196 = 9532^2 + 35514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352103229) 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, 2599939 + ... + 2600458.

It is an arithmetic number, because the mean of its divisors is an integer number (127409751).

Almost surely, 21352103220 is an apocalyptic number.

1352103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352103220 is an abundant number, since it is smaller than the sum of its proper divisors (1705730804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1352103220 is a wasteful number, since it uses less digits than its factorization.

1352103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200419 (or 5200417 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1352103220 is about 36770.9562018722. The cubic root of 1352103220 is about 1105.7831020658.

Adding to 1352103220 its reverse (223012531), we get a palindrome (1575115751).

The spelling of 1352103220 in words is "one billion, three hundred fifty-two million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 5200397 10400794 20801588 26001985 52003970 67605161 104007940 135210322 270420644 338025805 676051610 1352103220