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103111001010 = 23251960298831
BaseRepresentation
bin110000000000111100…
…1010000001110110010
3100212010222112120100100
41200001321100032302
53142132404013020
6115211334333230
710310121022203
oct1400171201662
9325128476310
10103111001010
113a802521216
1217b977ba216
1399531b9b44
144dc22bd5aa
152a37407a90
hex1801e503b2

103111001010 has 48 divisors (see below), whose sum is σ = 282198533760. Its totient is φ = 26049094560.

The previous prime is 103111000987. The next prime is 103111001047. The reversal of 103111001010 is 10100111301.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 103111000983 and 103111001001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30147706 + ... + 30151125.

It is an arithmetic number, because the mean of its divisors is an integer number (5879136120).

Almost surely, 2103111001010 is an apocalyptic number.

103111001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103111001010 is an abundant number, since it is smaller than the sum of its proper divisors (179087532750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103111001010 is a wasteful number, since it uses less digits than its factorization.

103111001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60298863 (or 60298860 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 9.

Adding to 103111001010 its reverse (10100111301), we get a palindrome (113211112311).

The spelling of 103111001010 in words is "one hundred three billion, one hundred eleven million, one thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 57 90 95 114 171 190 285 342 570 855 1710 60298831 120597662 180896493 301494155 361792986 542689479 602988310 904482465 1085378958 1145677789 1808964930 2291355578 2713447395 3437033367 5426894790 5728388945 6874066734 10311100101 11456777890 17185166835 20622200202 34370333670 51555500505 103111001010