Search a number
-
+
15011241021 = 3271978291459
BaseRepresentation
bin11011111101011110…
…10101110000111101
31102202011022001110200
431332233111300331
5221220334203041
610521314554113
71040664305040
oct157657256075
942664261420
1015011241021
1164034aa617
122aab298939
131552c8374a
14a2590cc57
155cccd51b6
hex37ebd5c3d

15011241021 has 48 divisors (see below), whose sum is σ = 24953385600. Its totient is φ = 8518172544.

The previous prime is 15011241013. The next prime is 15011241041. The reversal of 15011241021 is 12014211051.

It is not a de Polignac number, because 15011241021 - 23 = 15011241013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15011240985 and 15011241003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15011241041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10287990 + ... + 10289448.

It is an arithmetic number, because the mean of its divisors is an integer number (519862200).

Almost surely, 215011241021 is an apocalyptic number.

It is an amenable number.

15011241021 is a deficient number, since it is larger than the sum of its proper divisors (9942144579).

15011241021 is a wasteful number, since it uses less digits than its factorization.

15011241021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2495 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 15011241021 its reverse (12014211051), we get a palindrome (27025452072).

The spelling of 15011241021 in words is "fifteen billion, eleven million, two hundred forty-one thousand, twenty-one".

Divisors: 1 3 7 9 21 63 197 591 829 1379 1459 1773 2487 4137 4377 5803 7461 10213 12411 13131 17409 30639 52227 91917 163313 287423 489939 862269 1143191 1209511 1469817 2011961 2586807 3429573 3628533 6035883 8466577 10288719 10885599 18107649 25399731 76199193 238273667 714821001 1667915669 2144463003 5003747007 15011241021