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1102030031 = 4792300689
BaseRepresentation
bin100000110101111…
…1010010011001111
32211210122221000002
41001223322103033
54224104430111
6301204154515
736211046354
oct10153722317
92753587002
101102030031
11516081523
12269098a3b
1314741199b
14a650a62b
1566b3763b
hex41afa4cf

1102030031 has 4 divisors (see below), whose sum is σ = 1104331200. Its totient is φ = 1099728864.

The previous prime is 1102029997. The next prime is 1102030057. The reversal of 1102030031 is 1300302011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1102030031 - 26 = 1102029967 is a prime.

It is a super-2 number, since 2×11020300312 = 2428940378451721922, 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 = 1102029994 and 1102030021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102030931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149866 + ... + 1150823.

It is an arithmetic number, because the mean of its divisors is an integer number (276082800).

Almost surely, 21102030031 is an apocalyptic number.

1102030031 is a deficient number, since it is larger than the sum of its proper divisors (2301169).

1102030031 is an equidigital number, since it uses as much as digits as its factorization.

1102030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301168.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1102030031 is about 33196.8376656573. The cubic root of 1102030031 is about 1032.9147435922.

Adding to 1102030031 its reverse (1300302011), we get a palindrome (2402332042).

The spelling of 1102030031 in words is "one billion, one hundred two million, thirty thousand, thirty-one".

Divisors: 1 479 2300689 1102030031