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335472397 = 1325805569
BaseRepresentation
bin10011111111101…
…110011100001101
3212101020202121121
4103333232130031
51141340104042
653142200541
711212316431
oct2377563415
9771222547
10335472397
11162402417
1294423151
135466a8a0
14327a89c1
151e6b9367
hex13fee70d

335472397 has 4 divisors (see below), whose sum is σ = 361277980. Its totient is φ = 309666816.

The previous prime is 335472353. The next prime is 335472437. The reversal of 335472397 is 793274533.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793274533 = 898913197.

It can be written as a sum of positive squares in 2 ways, for example, as 122633476 + 212838921 = 11074^2 + 14589^2 .

It is a cyclic number.

It is not a de Polignac number, because 335472397 - 223 = 327083789 is a prime.

It is a super-2 number, since 2×3354723972 = 225083458297851218, 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 (335472317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12902772 + ... + 12902797.

It is an arithmetic number, because the mean of its divisors is an integer number (90319495).

Almost surely, 2335472397 is an apocalyptic number.

It is an amenable number.

335472397 is a deficient number, since it is larger than the sum of its proper divisors (25805583).

335472397 is a wasteful number, since it uses less digits than its factorization.

335472397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25805582.

The product of its digits is 476280, while the sum is 43.

The square root of 335472397 is about 18315.9055741178. The cubic root of 335472397 is about 694.8412569835.

The spelling of 335472397 in words is "three hundred thirty-five million, four hundred seventy-two thousand, three hundred ninety-seven".

Divisors: 1 13 25805569 335472397