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1213412411155 = 57246031075973
BaseRepresentation
bin10001101010000101000…
…001000000011100010011
311022000000210112012012011
4101222011001000130103
5124340032034124110
62325233423043351
7153444330213400
oct21520501003423
94260023465164
101213412411155
1142867274410a
12177201440557
138a569255179
1442a2d9692a7
152186c45348a
hex11a85040713

1213412411155 has 24 divisors (see below), whose sum is σ = 1694194229232. Its totient is φ = 831872688192.

The previous prime is 1213412411111. The next prime is 1213412411161. The reversal of 1213412411155 is 5511142143121.

It is not a de Polignac number, because 1213412411155 - 213 = 1213412402963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589749 + ... + 1665721.

It is an arithmetic number, because the mean of its divisors is an integer number (70591426218).

Almost surely, 21213412411155 is an apocalyptic number.

1213412411155 is a deficient number, since it is larger than the sum of its proper divisors (480781818077).

1213412411155 is a wasteful number, since it uses less digits than its factorization.

1213412411155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080595 (or 1080588 counting only the distinct ones).

The product of its digits is 4800, while the sum is 31.

Adding to 1213412411155 its reverse (5511142143121), we get a palindrome (6724554554276).

The spelling of 1213412411155 in words is "one trillion, two hundred thirteen billion, four hundred twelve million, four hundred eleven thousand, one hundred fifty-five".

Divisors: 1 5 7 35 49 245 4603 23015 32221 161105 225547 1075973 1127735 5379865 7531811 37659055 52722677 263613385 4952703719 24763518595 34668926033 173344630165 242682482231 1213412411155