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1142046031 = 71192713679
BaseRepresentation
bin100010000010010…
…0011110101001111
32221120221221122011
41010010203311033
54314330433111
6305154002051
740205142160
oct10404436517
92846857564
101142046031
115367230a5
1227a576327
131527b28a9
14ab965767
156a3de021
hex44123d4f

1142046031 has 8 divisors (see below), whose sum is σ = 1305400320. Its totient is φ = 978742968.

The previous prime is 1142046029. The next prime is 1142046047. The reversal of 1142046031 is 1306402411.

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

It is not a de Polignac number, because 1142046031 - 21 = 1142046029 is a prime.

It is a super-2 number, since 2×11420460312 = 2608538273845705922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1142045993 and 1142046011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142026031) 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, 76650 + ... + 90328.

It is an arithmetic number, because the mean of its divisors is an integer number (163175040).

Almost surely, 21142046031 is an apocalyptic number.

1142046031 is a deficient number, since it is larger than the sum of its proper divisors (163354289).

1142046031 is a wasteful number, since it uses less digits than its factorization.

1142046031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25613.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1142046031 is about 33794.1715536866. The cubic root of 1142046031 is about 1045.2685164240.

Adding to 1142046031 its reverse (1306402411), we get a palindrome (2448448442).

The spelling of 1142046031 in words is "one billion, one hundred forty-two million, forty-six thousand, thirty-one".

Divisors: 1 7 11927 13679 83489 95753 163149433 1142046031