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354031131 = 3491240347
BaseRepresentation
bin10101000110100…
…001011000011011
3220200011122102010
4111012201120123
51211112444011
655044041003
711526133506
oct2506413033
9820148363
10354031131
11171928913
129a693163
1358467c9c
143503a13d
15211331a6
hex151a161b

354031131 has 8 divisors (see below), whose sum is σ = 473004864. Its totient is φ = 235539080.

The previous prime is 354031091. The next prime is 354031141. The reversal of 354031131 is 131130453.

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 354031131 - 225 = 320476699 is a prime.

It is a super-2 number, since 2×3540311312 = 250676083434278322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 354031098 and 354031107.

It is not an unprimeable number, because it can be changed into a prime (354031141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118701 + ... + 121646.

It is an arithmetic number, because the mean of its divisors is an integer number (59125608).

Almost surely, 2354031131 is an apocalyptic number.

354031131 is a deficient number, since it is larger than the sum of its proper divisors (118973733).

354031131 is a wasteful number, since it uses less digits than its factorization.

354031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240841.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 354031131 is about 18815.7150010304. The cubic root of 354031131 is about 707.4251314434.

Adding to 354031131 its reverse (131130453), we get a palindrome (485161584).

The spelling of 354031131 in words is "three hundred fifty-four million, thirty-one thousand, one hundred thirty-one".

Divisors: 1 3 491 1473 240347 721041 118010377 354031131