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103210123020 = 22354089742061
BaseRepresentation
bin110000000011111001…
…1010111111100001100
3100212101220001111011220
41200013303113330030
53142333242414040
6115225235043340
710312433366514
oct1400763277414
9325356044156
10103210123020
113a853473034
1218004a40550
13996a8b3b14
144dd1522844
152a40e872d0
hex1807cd7f0c

103210123020 has 48 divisors (see below), whose sum is σ = 289002281568. Its totient is φ = 27521372160.

The previous prime is 103210122989. The next prime is 103210123033. The reversal of 103210123020 is 20321012301.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2432790 + ... + 2474850.

It is an arithmetic number, because the mean of its divisors is an integer number (6020880866).

Almost surely, 2103210123020 is an apocalyptic number.

103210123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103210123020 is an abundant number, since it is smaller than the sum of its proper divisors (185792158548).

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

103210123020 is a wasteful number, since it uses less digits than its factorization.

103210123020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82970 (or 82968 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 103210123020 its reverse (20321012301), we get a palindrome (123531135321).

The spelling of 103210123020 in words is "one hundred three billion, two hundred ten million, one hundred twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 40897 42061 81794 84122 122691 126183 163588 168244 204485 210305 245382 252366 408970 420610 490764 504732 613455 630915 817940 841220 1226910 1261830 2453820 2523660 1720168717 3440337434 5160506151 6880674868 8600843585 10321012302 17201687170 20642024604 25802530755 34403374340 51605061510 103210123020