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361449684 = 223210040269
BaseRepresentation
bin10101100010110…
…100100011010100
3221012010112202100
4111202310203110
51220012342214
655511042100
711646162111
oct2542644324
9835115670
10361449684
11176035552
12a1070330
1359b6486b
143600b908
1521aeb309
hex158b48d4

361449684 has 18 divisors (see below), whose sum is σ = 913664570. Its totient is φ = 120483216.

The previous prime is 361449679. The next prime is 361449689. The reversal of 361449684 is 486944163.

361449684 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (361449679) and next prime (361449689).

It can be written as a sum of positive squares in only one way, i.e., 359936784 + 1512900 = 18972^2 + 1230^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361449689) 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 5 ways as a sum of consecutive naturals, for example, 5020099 + ... + 5020170.

Almost surely, 2361449684 is an apocalyptic number.

It is an amenable number.

361449684 is an abundant number, since it is smaller than the sum of its proper divisors (552214886).

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

361449684 is a wasteful number, since it uses less digits than its factorization.

361449684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10040279 (or 10040274 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 361449684 is about 19011.8301065416. The cubic root of 361449684 is about 712.3322655941.

The spelling of 361449684 in words is "three hundred sixty-one million, four hundred forty-nine thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 10040269 20080538 30120807 40161076 60241614 90362421 120483228 180724842 361449684