Search a number
-
+
15513042245 = 513772731151
BaseRepresentation
bin11100111001010011…
…00011110101000101
31111001010112012100012
432130221203311011
5223232314322440
611043202200005
71056266453261
oct163451436505
944033465305
1015513042245
116640787278
12300b353005
131602c1964c
14a724130a1
1560bda6e65
hex39ca63d45

15513042245 has 16 divisors (see below), whose sum is σ = 18777927168. Its totient is φ = 12302505600.

The previous prime is 15513042241. The next prime is 15513042247. The reversal of 15513042245 is 54224031551.

It is not a de Polignac number, because 15513042245 - 22 = 15513042241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15513042241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482420 + ... + 513570.

It is an arithmetic number, because the mean of its divisors is an integer number (1173620448).

Almost surely, 215513042245 is an apocalyptic number.

It is an amenable number.

15513042245 is a deficient number, since it is larger than the sum of its proper divisors (3264884923).

15513042245 is a wasteful number, since it uses less digits than its factorization.

15513042245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32020.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 15513042245 its reverse (54224031551), we get a palindrome (69737073796).

The spelling of 15513042245 in words is "fifteen billion, five hundred thirteen million, forty-two thousand, two hundred forty-five".

Divisors: 1 5 137 685 727 3635 31151 99599 155755 497995 4267687 21338435 22646777 113233885 3102608449 15513042245