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361440538 = 2237857403
BaseRepresentation
bin10101100010110…
…010010100011010
3221012010002012121
4111202302110122
51220012044123
655510531454
711646123334
oct2542622432
9835102177
10361440538
11176029698
12a1066b8a
1359b60654
1436008454
1521ae875d
hex158b251a

361440538 has 8 divisors (see below), whose sum is σ = 565733088. Its totient is φ = 172862844.

The previous prime is 361440511. The next prime is 361440539. The reversal of 361440538 is 835044163.

It is a happy number.

361440538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (361440539) 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 3 ways as a sum of consecutive naturals, for example, 3928656 + ... + 3928747.

It is an arithmetic number, because the mean of its divisors is an integer number (70716636).

Almost surely, 2361440538 is an apocalyptic number.

361440538 is a deficient number, since it is larger than the sum of its proper divisors (204292550).

361440538 is a wasteful number, since it uses less digits than its factorization.

361440538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857428.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 361440538 is about 19011.5895705751. The cubic root of 361440538 is about 712.3262573389.

The spelling of 361440538 in words is "three hundred sixty-one million, four hundred forty thousand, five hundred thirty-eight".

Divisors: 1 2 23 46 7857403 15714806 180720269 361440538