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103103033031 = 35808952453
BaseRepresentation
bin110000000000101101…
…0110110111011000111
3100212010102112202100000
41200001122312323013
53142123334024111
6115210451452343
710306663215015
oct1400132667307
9325112482300
10103103033031
113a7a8a79809
1217b94bb70b3
13995165a16b
144dc12078b5
152a36881c56
hex18016b6ec7

103103033031 has 24 divisors (see below), whose sum is σ = 154464441040. Its totient is φ = 68725547712.

The previous prime is 103103033027. The next prime is 103103033039. The reversal of 103103033031 is 130330301301.

It is not a de Polignac number, because 103103033031 - 22 = 103103033027 is a prime.

It is a super-2 number, since 2×1031030330312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103103032995 and 103103033013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103103033039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1939401 + ... + 1991853.

Almost surely, 2103103033031 is an apocalyptic number.

103103033031 is a deficient number, since it is larger than the sum of its proper divisors (51361408009).

103103033031 is an frugal number, since it uses more digits than its factorization.

103103033031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60557 (or 60545 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

Adding to 103103033031 its reverse (130330301301), we get a palindrome (233433334332).

The spelling of 103103033031 in words is "one hundred three billion, one hundred three million, thirty-three thousand, thirty-one".

Divisors: 1 3 9 27 81 243 8089 24267 52453 72801 157359 218403 472077 655209 1416231 1965627 4248693 12746079 424292317 1272876951 3818630853 11455892559 34367677677 103103033031