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1315324431355 = 51189332380863
BaseRepresentation
bin10011001000111111011…
…100100000101111111011
311122202002012222020001211
4103020333130200233323
5133022241023300410
62444130211223551
7164012652123664
oct23107734405773
94582065866054
101315324431355
1146790a3952a0
12192b035a7bb7
139705ac166bc
144793a90236b
152433447268a
hex1323f720bfb

1315324431355 has 32 divisors (see below), whose sum is σ = 1741771745280. Its totient is φ = 945554945280.

The previous prime is 1315324431347. The next prime is 1315324431361. The reversal of 1315324431355 is 5531344235131.

It is not a de Polignac number, because 1315324431355 - 23 = 1315324431347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16225654 + ... + 16306516.

It is an arithmetic number, because the mean of its divisors is an integer number (54430367040).

Almost surely, 21315324431355 is an apocalyptic number.

1315324431355 is a deficient number, since it is larger than the sum of its proper divisors (426447313925).

1315324431355 is a wasteful number, since it uses less digits than its factorization.

1315324431355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84291.

The product of its digits is 324000, while the sum is 40.

Adding to 1315324431355 its reverse (5531344235131), we get a palindrome (6846668666486).

The spelling of 1315324431355 in words is "one trillion, three hundred fifteen billion, three hundred twenty-four million, four hundred thirty-one thousand, three hundred fifty-five".

Divisors: 1 5 11 55 89 445 979 3323 4895 16615 36553 80863 182765 295747 404315 889493 1478735 3253217 4447465 7196807 16266085 35984035 79164877 268707749 395824385 1343538745 2955785239 14778926195 23914989661 119574948305 263064886271 1315324431355