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103212031110 = 2356156400017
BaseRepresentation
bin110000000011111101…
…0101001110010000110
3100212102000122102120220
41200013322221302012
53142334234443420
6115225344005210
710312455534456
oct1400772516206
9325360572526
10103212031110
113a854556671
1218005600806
13996b101476
144dd189bd66
152a41212840
hex1807ea9c86

103212031110 has 32 divisors (see below), whose sum is σ = 251769680352. Its totient is φ = 27072007680.

The previous prime is 103212031093. The next prime is 103212031121. The reversal of 103212031110 is 11130212301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 103212031110.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28198179 + ... + 28201838.

It is an arithmetic number, because the mean of its divisors is an integer number (7867802511).

Almost surely, 2103212031110 is an apocalyptic number.

103212031110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103212031110 is an abundant number, since it is smaller than the sum of its proper divisors (148557649242).

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

103212031110 is a wasteful number, since it uses less digits than its factorization.

103212031110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56400088.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 103212031110 its reverse (11130212301), we get a palindrome (114342243411).

The spelling of 103212031110 in words is "one hundred three billion, two hundred twelve million, thirty-one thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 61 122 183 305 366 610 915 1830 56400017 112800034 169200051 282000085 338400102 564000170 846000255 1692000510 3440401037 6880802074 10321203111 17202005185 20642406222 34404010370 51606015555 103212031110