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11415102280 = 235285377557
BaseRepresentation
bin10101010000110010…
…01010001101001000
31002110112112021111221
422220121022031020
5141334231233110
65124413131424
7552606524401
oct125031121510
932415467457
1011415102280
11492858932a
122266a89b74
1310cbc25cba
147a40869a8
1546c2377da
hex2a864a348

11415102280 has 16 divisors (see below), whose sum is σ = 25683980220. Its totient is φ = 4566040896.

The previous prime is 11415102271. The next prime is 11415102311. The reversal of 11415102280 is 8220151411.

It can be written as a sum of positive squares in 2 ways, for example, as 10753275204 + 661827076 = 103698^2 + 25726^2 .

It is a super-2 number, since 2×114151022802 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142688739 + ... + 142688818.

Almost surely, 211415102280 is an apocalyptic number.

11415102280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11415102280 is an abundant number, since it is smaller than the sum of its proper divisors (14268877940).

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

11415102280 is a wasteful number, since it uses less digits than its factorization.

11415102280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285377568 (or 285377564 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

Adding to 11415102280 its reverse (8220151411), we get a palindrome (19635253691).

The spelling of 11415102280 in words is "eleven billion, four hundred fifteen million, one hundred two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 285377557 570755114 1141510228 1426887785 2283020456 2853775570 5707551140 11415102280