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1133022031 = 9711166861
BaseRepresentation
bin100001110001000…
…1000101101001111
32220221222111000221
41003202020231033
54310023201111
6304232332211
740035346141
oct10342105517
92827874027
101133022031
1153161a249
12277544067
1315097334b
14aa696c91
156970a371
hex43888b4f

1133022031 has 4 divisors (see below), whose sum is σ = 1134189864. Its totient is φ = 1131854200.

The previous prime is 1133022019. The next prime is 1133022043. The reversal of 1133022031 is 1302203311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1302203311 = 2515188061.

It is an interprime number because it is at equal distance from previous prime (1133022019) and next prime (1133022043).

It is a cyclic number.

It is not a de Polignac number, because 1133022031 - 211 = 1133019983 is a prime.

It is a super-2 number, since 2×11330220312 = 2567477845462729922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133021996 and 1133022014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133022061) 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, 582460 + ... + 584401.

It is an arithmetic number, because the mean of its divisors is an integer number (283547466).

Almost surely, 21133022031 is an apocalyptic number.

1133022031 is a deficient number, since it is larger than the sum of its proper divisors (1167833).

1133022031 is an equidigital number, since it uses as much as digits as its factorization.

1133022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167832.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1133022031 is about 33660.3926150602. The cubic root of 1133022031 is about 1042.5081324425.

Adding to 1133022031 its reverse (1302203311), we get a palindrome (2435225342).

The spelling of 1133022031 in words is "one billion, one hundred thirty-three million, twenty-two thousand, thirty-one".

Divisors: 1 971 1166861 1133022031