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1115241512431 = 9917639147319
BaseRepresentation
bin10000001110101001100…
…100101111110111101111
310221121122002122211012011
4100032221210233313233
5121233003311344211
62212200200022051
7143400503305564
oct20165144576757
93847562584164
101115241512431
1139aa75839962
12160184161927
1381222684697
143bd997d886b
151e023abe921
hex103a992fdef

1115241512431 has 8 divisors (see below), whose sum is σ = 1116520601600. Its totient is φ = 1113962735160.

The previous prime is 1115241512423. The next prime is 1115241512443. The reversal of 1115241512431 is 1342151425111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1115241512431 - 23 = 1115241512423 is a prime.

It is a super-2 number, since 2×11152415124312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115241512393 and 1115241512402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115241512831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7496590 + ... + 7643908.

It is an arithmetic number, because the mean of its divisors is an integer number (139565075200).

Almost surely, 21115241512431 is an apocalyptic number.

1115241512431 is a deficient number, since it is larger than the sum of its proper divisors (1279089169).

1115241512431 is an equidigital number, since it uses as much as digits as its factorization.

1115241512431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155949.

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

Adding to 1115241512431 its reverse (1342151425111), we get a palindrome (2457392937542).

The spelling of 1115241512431 in words is "one trillion, one hundred fifteen billion, two hundred forty-one million, five hundred twelve thousand, four hundred thirty-one".

Divisors: 1 991 7639 147319 7570249 145993129 1125369841 1115241512431