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11020013020 = 2251732411803
BaseRepresentation
bin10100100001101100…
…00000110111011100
31001110000002122221101
422100312000313130
5140032110404040
65021301042444
7540041364562
oct122066006734
931400078841
1011020013020
114745567985
1221766b6424
131068113983
147677dda32
154476e409a
hex290d80ddc

11020013020 has 24 divisors (see below), whose sum is σ = 24503323824. Its totient is φ = 4148710656.

The previous prime is 11020012921. The next prime is 11020013027. The reversal of 11020013020 is 2031002011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11020012988 and 11020013006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020013027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16205562 + ... + 16206241.

It is an arithmetic number, because the mean of its divisors is an integer number (1020971826).

Almost surely, 211020013020 is an apocalyptic number.

11020013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020013020 is an abundant number, since it is smaller than the sum of its proper divisors (13483310804).

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

11020013020 is a wasteful number, since it uses less digits than its factorization.

11020013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32411829 (or 32411827 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 11020013020 its reverse (2031002011), we get a palindrome (13051015031).

The spelling of 11020013020 in words is "eleven billion, twenty million, thirteen thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 32411803 64823606 129647212 162059015 324118030 551000651 648236060 1102001302 2204002604 2755003255 5510006510 11020013020