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111112111002 = 2318518685167
BaseRepresentation
bin110011101111011001…
…1000100001110011010
3101121210121001001212110
41213132303010032122
53310024200023002
6123013314053150
711012314234404
oct1473663041632
9347717031773
10111112111002
1143138987612
121964b27a1b6
13a629a2b259
145540b95b74
152d54a71e6c
hex19decc439a

111112111002 has 8 divisors (see below), whose sum is σ = 222224222016. Its totient is φ = 37037370332.

The previous prime is 111112110971. The next prime is 111112111007. The reversal of 111112111002 is 200111211111.

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

111112111002 is an admirable number.

It is a super-2 number, since 2×1111121110022 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111112111007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9259342578 + ... + 9259342589.

It is an arithmetic number, because the mean of its divisors is an integer number (27778027752).

Almost surely, 2111112111002 is an apocalyptic number.

111112111002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111112111002 is a wasteful number, since it uses less digits than its factorization.

111112111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18518685172.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111112111002 its reverse (200111211111), we get a palindrome (311223322113).

The spelling of 111112111002 in words is "one hundred eleven billion, one hundred twelve million, one hundred eleven thousand, two".

Divisors: 1 2 3 6 18518685167 37037370334 55556055501 111112111002