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352181425 = 5264121977
BaseRepresentation
bin10100111111011…
…101110010110001
3220112200200002111
4110333131302301
51210124301200
654540245321
711504331001
oct2477356261
9815620074
10352181425
11170885132
1299b40841
1357c6b09b
1434ab8001
1520dba0ba
hex14fddcb1

352181425 has 12 divisors (see below), whose sum is σ = 437406156. Its totient is φ = 281292800.

The previous prime is 352181383. The next prime is 352181471. The reversal of 352181425 is 524181253.

It can be written as a sum of positive squares in 6 ways, for example, as 2005056 + 350176369 = 1416^2 + 18713^2 .

It is not a de Polignac number, because 352181425 - 225 = 318626993 is a prime.

It is a super-2 number, since 2×3521814252 = 248063512230061250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5037 + ... + 27013.

It is an arithmetic number, because the mean of its divisors is an integer number (36450513).

Almost surely, 2352181425 is an apocalyptic number.

It is an amenable number.

352181425 is a deficient number, since it is larger than the sum of its proper divisors (85224731).

352181425 is a wasteful number, since it uses less digits than its factorization.

352181425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22628 (or 22623 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 352181425 is about 18766.4974089466. The cubic root of 352181425 is about 706.1909518074.

The spelling of 352181425 in words is "three hundred fifty-two million, one hundred eighty-one thousand, four hundred twenty-five".

Divisors: 1 5 25 641 3205 16025 21977 109885 549425 14087257 70436285 352181425