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103278020220 = 223351717962851
BaseRepresentation
bin110000000101111011…
…0011000011001111100
3100212120121211000122000
41200023312120121330
53143003133121340
6115240102222300
710314216454524
oct1401366303174
9325517730560
10103278020220
113a888828221
1218023724990
13997b99748b
144dda558684
152a46de9d30
hex180bd9867c

103278020220 has 192 divisors, whose sum is σ = 342116006400. Its totient is φ = 25775539200.

The previous prime is 103278020179. The next prime is 103278020243. The reversal of 103278020220 is 22020872301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1611795 + ... + 1674645.

It is an arithmetic number, because the mean of its divisors is an integer number (1781854200).

Almost surely, 2103278020220 is an apocalyptic number.

103278020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103278020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171058003200).

103278020220 is an abundant number, since it is smaller than the sum of its proper divisors (238837986180).

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

103278020220 is a wasteful number, since it uses less digits than its factorization.

103278020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63065 (or 63057 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 103278020220 its reverse (22020872301), we get a palindrome (125298892521).

The spelling of 103278020220 in words is "one hundred three billion, two hundred seventy-eight million, twenty thousand, two hundred twenty".