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102226806740 = 2255111340337
BaseRepresentation
bin101111100110100110…
…0010100011111010100
3100202212100202211211102
41133031030110133110
53133330030303430
6114543511125232
710246163343302
oct1371514243724
9322770684742
10102226806740
113a399404a53
121798b673818
139841c68776
144d3aab9272
1529d499e345
hex17cd3147d4

102226806740 has 12 divisors (see below), whose sum is σ = 214676294196. Its totient is φ = 40890722688.

The previous prime is 102226806713. The next prime is 102226806743. The reversal of 102226806740 is 47608622201.

It can be written as a sum of positive squares in 2 ways, for example, as 10365683344 + 91861123396 = 101812^2 + 303086^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102226806694 and 102226806703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102226806743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2555670149 + ... + 2555670188.

It is an arithmetic number, because the mean of its divisors is an integer number (17889691183).

Almost surely, 2102226806740 is an apocalyptic number.

102226806740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102226806740 is an abundant number, since it is smaller than the sum of its proper divisors (112449487456).

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

102226806740 is a wasteful number, since it uses less digits than its factorization.

102226806740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111340346 (or 5111340344 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 102226806740 in words is "one hundred two billion, two hundred twenty-six million, eight hundred six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 5111340337 10222680674 20445361348 25556701685 51113403370 102226806740