Search a number
-
+
15244452 = 2232423457
BaseRepresentation
bin111010001001…
…110010100100
31001200111110100
4322021302210
512400310302
61302424100
7243401316
oct72116244
931614410
1015244452
118672423
125132030
1332099b2
14204b7b6
151511d1c
hexe89ca4

15244452 has 18 divisors (see below), whose sum is σ = 38534678. Its totient is φ = 5081472.

The previous prime is 15244447. The next prime is 15244501. The reversal of 15244452 is 25444251.

It can be written as a sum of positive squares in only one way, i.e., 10342656 + 4901796 = 3216^2 + 2214^2 .

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

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 211693 + ... + 211764.

Almost surely, 215244452 is an apocalyptic number.

15244452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15244452 is an abundant number, since it is smaller than the sum of its proper divisors (23290226).

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

15244452 is a wasteful number, since it uses less digits than its factorization.

15244452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423467 (or 423462 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 15244452 is about 3904.4144247249. The cubic root of 15244452 is about 247.9537071068.

The spelling of 15244452 in words is "fifteen million, two hundred forty-four thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 423457 846914 1270371 1693828 2540742 3811113 5081484 7622226 15244452