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361090 = 2536109
BaseRepresentation
bin1011000001010000010
3200100022201
41120022002
543023330
611423414
73032512
oct1301202
9610281
10361090
11227324
12154b6a
13c8482
1495842
1571eca
hex58282

361090 has 8 divisors (see below), whose sum is σ = 649980. Its totient is φ = 144432.

The previous prime is 361069. The next prime is 361091. The reversal of 361090 is 90163.

It can be written as a sum of positive squares in 2 ways, for example, as 328329 + 32761 = 573^2 + 181^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (361091) by changing a digit.

361090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18045 + ... + 18064.

2361090 is an apocalyptic number.

361090 is a deficient number, since it is larger than the sum of its proper divisors (288890).

361090 is a wasteful number, since it uses less digits than its factorization.

361090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36116.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 361090 is about 600.9076468144. The cubic root of 361090 is about 71.2095903001.

It can be divided in two parts, 3610 and 90, that multiplied together give a square (324900 = 5702).

The spelling of 361090 in words is "three hundred sixty-one thousand, ninety".

Divisors: 1 2 5 10 36109 72218 180545 361090