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361456144 = 2474972
BaseRepresentation
bin10101100010110…
…110001000010000
3221012010212121121
4111202312020100
51220013044034
655511132024
711646220000
oct2542661020
9835125547
10361456144
1117603a395
12a1074014
1359b6779a
1436010000
1521aed1b4
hex158b6210

361456144 has 75 divisors (see below), whose sum is σ = 825502317. Its totient is φ = 153312768.

The previous prime is 361456141. The next prime is 361456157. The reversal of 361456144 is 441654163.

The square root of 361456144 is 19012.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 162307600 + 199148544 = 12740^2 + 14112^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361456141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3726304 + ... + 3726400.

Almost surely, 2361456144 is an apocalyptic number.

361456144 is the 19012-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 361456144

361456144 is an abundant number, since it is smaller than the sum of its proper divisors (464046173).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361456144 is an frugal number, since it uses more digits than its factorization.

361456144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 106 counting only the distinct ones).

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

The cubic root of 361456144 is about 712.3365092821.

The spelling of 361456144 in words is "three hundred sixty-one million, four hundred fifty-six thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 49 56 97 98 112 194 196 343 388 392 679 686 776 784 1358 1372 1552 2401 2716 2744 4753 4802 5432 5488 9409 9506 9604 10864 18818 19012 19208 33271 37636 38024 38416 65863 66542 75272 76048 131726 133084 150544 232897 263452 266168 461041 465794 526904 532336 922082 931588 1053808 1844164 1863176 3227287 3688328 3726352 6454574 7376656 12909148 22591009 25818296 45182018 51636592 90364036 180728072 361456144