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1142031 = 31134607
BaseRepresentation
bin100010110110100001111
32011000120110
410112310033
5243021111
640251103
712464352
oct4266417
92130513
101142031
11710030
12470a93
1330ca77
1421a299
151785a6
hex116d0f

1142031 has 8 divisors (see below), whose sum is σ = 1661184. Its totient is φ = 692120.

The previous prime is 1142021. The next prime is 1142039. The reversal of 1142031 is 1302411.

It is a happy number.

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

It is not a de Polignac number, because 1142031 - 25 = 1141999 is a prime.

It is a super-2 number, since 2×11420312 = 2608469609922, which contains 22 as substring.

1142031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1141998 and 1142016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17271 + ... + 17336.

It is an arithmetic number, because the mean of its divisors is an integer number (207648).

21142031 is an apocalyptic number.

1142031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1142031 is a deficient number, since it is larger than the sum of its proper divisors (519153).

1142031 is a wasteful number, since it uses less digits than its factorization.

1142031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34621.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1142031 is about 1068.6585048555. The cubic root of 1142031 is about 104.5263930649.

Adding to 1142031 its reverse (1302411), we get a palindrome (2444442).

It can be divided in two parts, 114 and 2031, that added together give a triangular number (2145 = T65).

The spelling of 1142031 in words is "one million, one hundred forty-two thousand, thirty-one".

Divisors: 1 3 11 33 34607 103821 380677 1142031