Search a number
-
+
15554330089 = 1247172
BaseRepresentation
bin11100111110001110…
…00011110111101001
31111011000012211121121
432133013003313221
5223323402030324
611051235135241
71060310424064
oct163707036751
944130184547
1015554330089
116662017461
123021144521
13160b64441c
14a77abd8db
156108105e4
hex39f1c3de9

15554330089 has 3 divisors (see below), whose sum is σ = 15554454807. Its totient is φ = 15554205372.

The previous prime is 15554330087. The next prime is 15554330147. The reversal of 15554330089 is 98003345551.

The square root of 15554330089 is 124717.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98003345551 = 458232138737.

It can be written as a sum of positive squares in only one way, i.e., 14133643225 + 1420686864 = 118885^2 + 37692^2 .

It is not a de Polignac number, because 15554330089 - 21 = 15554330087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15554330087) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 62359 + ... + 187075.

It is an arithmetic number, because the mean of its divisors is an integer number (5184818269).

Almost surely, 215554330089 is an apocalyptic number.

15554330089 is the 124717-th square number.

15554330089 is the 62359-th centered octagonal number.

It is an amenable number.

15554330089 is a deficient number, since it is larger than the sum of its proper divisors (124718).

15554330089 is an frugal number, since it uses more digits than its factorization.

15554330089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249434 (or 124717 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 15554330089 in words is "fifteen billion, five hundred fifty-four million, three hundred thirty thousand, eighty-nine".

Divisors: 1 124717 15554330089