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355345381 = 2933137019
BaseRepresentation
bin10101001011100…
…010001111100101
3220202122102020001
4111023202033211
51211432023011
655132141301
711543246236
oct2513421745
9822572201
10355345381
11172646276
129b007831
1358808251
143529d08d
15212e27c1
hex152e23e5

355345381 has 8 divisors (see below), whose sum is σ = 368719200. Its totient is φ = 342046320.

The previous prime is 355345363. The next prime is 355345411. The reversal of 355345381 is 183543553.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 355345381 - 27 = 355345253 is a prime.

It is a super-2 number, since 2×3553453812 = 252540679596070322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 355345381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355345301) 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, 8911 + ... + 28108.

It is an arithmetic number, because the mean of its divisors is an integer number (46089900).

Almost surely, 2355345381 is an apocalyptic number.

It is an amenable number.

355345381 is a deficient number, since it is larger than the sum of its proper divisors (13373819).

355345381 is a wasteful number, since it uses less digits than its factorization.

355345381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37379.

The product of its digits is 108000, while the sum is 37.

The square root of 355345381 is about 18850.6069133065. The cubic root of 355345381 is about 708.2994287378.

The spelling of 355345381 in words is "three hundred fifty-five million, three hundred forty-five thousand, three hundred eighty-one".

Divisors: 1 29 331 9599 37019 1073551 12253289 355345381