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1112142031 = 711131111031
BaseRepresentation
bin100001001001001…
…1111000011001111
32212111200200001121
41002102133003033
54234202021111
6302205021411
736363023410
oct10222370317
92774620047
101112142031
11520858850
12270554867
13149542510
14a79bd807
1567983871
hex4249f0cf

1112142031 has 16 divisors (see below), whose sum is σ = 1493227008. Its totient is φ = 799941600.

The previous prime is 1112142001. The next prime is 1112142043. The reversal of 1112142031 is 1302412111.

It is a cyclic number.

It is not a de Polignac number, because 1112142031 - 27 = 1112141903 is a prime.

It is a super-2 number, since 2×11121420312 = 2473719794233609922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112141996 and 1112142014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112142001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554515 + ... + 556516.

It is an arithmetic number, because the mean of its divisors is an integer number (93326688).

Almost surely, 21112142031 is an apocalyptic number.

1112142031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112142031 is a deficient number, since it is larger than the sum of its proper divisors (381084977).

1112142031 is a wasteful number, since it uses less digits than its factorization.

1112142031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111062.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1112142031 is about 33348.7935463938. The cubic root of 1112142031 is about 1036.0644004107.

Adding to 1112142031 its reverse (1302412111), we get a palindrome (2414554142).

The spelling of 1112142031 in words is "one billion, one hundred twelve million, one hundred forty-two thousand, thirty-one".

Divisors: 1 7 11 13 77 91 143 1001 1111031 7777217 12221341 14443403 85549387 101103821 158877433 1112142031