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103123210020 = 22351718720167
BaseRepresentation
bin110000000001010011…
…1110100111100100100
3100212011211111211221220
41200002213310330210
53142144020210040
6115212452140340
710310326552035
oct1400247647444
9325154454856
10103123210020
113a809400006
1217b9b9076b0
1399558a2ccc
144dc3b7aa8c
152a3851a2d0
hex18029f4f24

103123210020 has 24 divisors (see below), whose sum is σ = 288744988224. Its totient is φ = 27499522656.

The previous prime is 103123210007. The next prime is 103123210033. The reversal of 103123210020 is 20012321301.

It is an interprime number because it is at equal distance from previous prime (103123210007) and next prime (103123210033).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859360024 + ... + 859360143.

It is an arithmetic number, because the mean of its divisors is an integer number (12031041176).

Almost surely, 2103123210020 is an apocalyptic number.

103123210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103123210020 is an abundant number, since it is smaller than the sum of its proper divisors (185621778204).

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

103123210020 is a wasteful number, since it uses less digits than its factorization.

103123210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718720179 (or 1718720177 counting only the distinct ones).

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

Adding to 103123210020 its reverse (20012321301), we get a palindrome (123135531321).

The spelling of 103123210020 in words is "one hundred three billion, one hundred twenty-three million, two hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1718720167 3437440334 5156160501 6874880668 8593600835 10312321002 17187201670 20624642004 25780802505 34374403340 51561605010 103123210020