Search a number
-
+
245311330155 = 3533294912613
BaseRepresentation
bin1110010001110110110…
…0011101011101101011
3212110012011112202020120
43210131230131131223
513004344200031110
6304410001054323
723503020621243
oct3443554353553
9773164482216
10245311330155
119504393a1a1
123b6623273a3
131a195897238
14bc31c32b23
1565ab3ad870
hex391db1d76b

245311330155 has 16 divisors (see below), whose sum is σ = 392616110880. Its totient is φ = 130793381888.

The previous prime is 245311330109. The next prime is 245311330157. The reversal of 245311330155 is 551033113542.

It is a cyclic number.

It is not a de Polignac number, because 245311330155 - 212 = 245311326059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245311330157) 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 15 ways as a sum of consecutive naturals, for example, 2406372 + ... + 2506241.

It is an arithmetic number, because the mean of its divisors is an integer number (24538506930).

Almost surely, 2245311330155 is an apocalyptic number.

245311330155 is a deficient number, since it is larger than the sum of its proper divisors (147304780725).

245311330155 is a wasteful number, since it uses less digits than its factorization.

245311330155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915950.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 245311330155 its reverse (551033113542), we get a palindrome (796344443697).

The spelling of 245311330155 in words is "two hundred forty-five billion, three hundred eleven million, three hundred thirty thousand, one hundred fifty-five".

Divisors: 1 3 5 15 3329 9987 16645 49935 4912613 14737839 24563065 73689195 16354088677 49062266031 81770443385 245311330155