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105717423030 = 23516981207521
BaseRepresentation
bin110001001110100111…
…1111101101110110110
3101002212121222112012020
41202131033331232312
53213002130014110
6120322123134010
710431530161212
oct1423517755666
9332777875166
10105717423030
114091a8026aa
12185a4674306
139c7a19abab
14518c513942
152b3b155d70
hex189d3fdbb6

105717423030 has 32 divisors (see below), whose sum is σ = 253737979488. Its totient is φ = 28189516800.

The previous prime is 105717423023. The next prime is 105717423041. The reversal of 105717423030 is 30324717501.

It is a super-2 number, since 2×1057174230302 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 105717422982 and 105717423000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405670 + ... + 613190.

It is an arithmetic number, because the mean of its divisors is an integer number (7929311859).

Almost surely, 2105717423030 is an apocalyptic number.

105717423030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105717423030 is an abundant number, since it is smaller than the sum of its proper divisors (148020556458).

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

105717423030 is a wasteful number, since it uses less digits than its factorization.

105717423030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224512.

The product of its (nonzero) digits is 17640, while the sum is 33.

The spelling of 105717423030 in words is "one hundred five billion, seven hundred seventeen million, four hundred twenty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 16981 33962 50943 84905 101886 169810 207521 254715 415042 509430 622563 1037605 1245126 2075210 3112815 6225630 3523914101 7047828202 10571742303 17619570505 21143484606 35239141010 52858711515 105717423030