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103131421110 = 23255321620843
BaseRepresentation
bin110000000001100011…
…1001001100110110110
3100212012101222000110100
41200003013021212312
53142203120433420
6115213344134530
710310456421054
oct1400307114666
9325171860410
10103131421110
113a812aa9133
1217ba2607446
1399574b9543
144dc4cb71d4
152a390dd190
hex18031c99b6

103131421110 has 48 divisors (see below), whose sum is σ = 273200984784. Its totient is φ = 26982810816.

The previous prime is 103131421109. The next prime is 103131421139. The reversal of 103131421110 is 11124131301.

It is a happy number.

103131421110 is a `hidden beast` number, since 1 + 0 + 3 + 131 + 421 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 10805652 + ... + 10815191.

It is an arithmetic number, because the mean of its divisors is an integer number (5691687183).

Almost surely, 2103131421110 is an apocalyptic number.

103131421110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103131421110 is an abundant number, since it is smaller than the sum of its proper divisors (170069563674).

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

103131421110 is a wasteful number, since it uses less digits than its factorization.

103131421110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21620909 (or 21620906 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 103131421110 its reverse (11124131301), we get a palindrome (114255552411).

The spelling of 103131421110 in words is "one hundred three billion, one hundred thirty-one million, four hundred twenty-one thousand, one hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 53 90 106 159 265 318 477 530 795 954 1590 2385 4770 21620843 43241686 64862529 108104215 129725058 194587587 216208430 324312645 389175174 648625290 972937935 1145904679 1945875870 2291809358 3437714037 5729523395 6875428074 10313142111 11459046790 17188570185 20626284222 34377140370 51565710555 103131421110