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352542389 = 379930191
BaseRepresentation
bin10101000000110…
…101111010110101
3220120101000020112
4111000311322311
51210222324024
654552112405
711510363243
oct2500657265
9816330215
10352542389
11171001351
129a095705
1358066484
1434b6d793
1520e3c00e
hex15035eb5

352542389 has 4 divisors (see below), whose sum is σ = 353472960. Its totient is φ = 351611820.

The previous prime is 352542383. The next prime is 352542391. The reversal of 352542389 is 983245253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 352542389 - 24 = 352542373 is a prime.

It is a super-2 number, since 2×3525423892 = 248572272083654642, 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 (352542383) 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, 464717 + ... + 465474.

It is an arithmetic number, because the mean of its divisors is an integer number (88368240).

Almost surely, 2352542389 is an apocalyptic number.

It is an amenable number.

352542389 is a deficient number, since it is larger than the sum of its proper divisors (930571).

352542389 is an equidigital number, since it uses as much as digits as its factorization.

352542389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930570.

The product of its digits is 259200, while the sum is 41.

The square root of 352542389 is about 18776.1121907598. The cubic root of 352542389 is about 706.4321366565.

The spelling of 352542389 in words is "three hundred fifty-two million, five hundred forty-two thousand, three hundred eighty-nine".

Divisors: 1 379 930191 352542389