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11512211037 = 353127570109
BaseRepresentation
bin10101011100010111…
…00110011001011101
31002201022020220200120
422232023212121131
5142034111223122
65142202345153
7555166115325
oct125613463135
932638226616
1011512211037
1149783855a8
1222934bb1b9
1311160967c2
147b2d24285
15475a1a75c
hex2ae2e665d

11512211037 has 16 divisors (see below), whose sum is σ = 15762401280. Its totient is φ = 7470695232.

The previous prime is 11512210993. The next prime is 11512211041. The reversal of 11512211037 is 73011221511.

It is not a de Polignac number, because 11512211037 - 28 = 11512210781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11512210998 and 11512211016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512211437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264862 + ... + 305247.

It is an arithmetic number, because the mean of its divisors is an integer number (985150080).

Almost surely, 211512211037 is an apocalyptic number.

It is an amenable number.

11512211037 is a deficient number, since it is larger than the sum of its proper divisors (4250190243).

11512211037 is a wasteful number, since it uses less digits than its factorization.

11512211037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570292.

The product of its (nonzero) digits is 420, while the sum is 24.

Adding to 11512211037 its reverse (73011221511), we get a palindrome (84523432548).

The spelling of 11512211037 in words is "eleven billion, five hundred twelve million, two hundred eleven thousand, thirty-seven".

Divisors: 1 3 53 127 159 381 6731 20193 570109 1710327 30215777 72403843 90647331 217211529 3837403679 11512211037