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53450455740 = 22351180985539
BaseRepresentation
bin110001110001111001…
…010011101010111100
312002222001110111001220
4301301321103222330
51333431304040430
640315500433340
73601360243323
oct616171235274
9162861414056
1053450455740
1120739430570
12a438548850
13506a880506
142830ab30ba
1515cc767110
hexc71e53abc

53450455740 has 48 divisors (see below), whose sum is σ = 163266848640. Its totient is φ = 12957686080.

The previous prime is 53450455699. The next prime is 53450455741. The reversal of 53450455740 is 4755405435.

It is a junction number, because it is equal to n+sod(n) for n = 53450455692 and 53450455701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53450455741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40492110 + ... + 40493429.

It is an arithmetic number, because the mean of its divisors is an integer number (3401392680).

Almost surely, 253450455740 is an apocalyptic number.

It is an amenable number.

53450455740 is an abundant number, since it is smaller than the sum of its proper divisors (109816392900).

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

53450455740 is a wasteful number, since it uses less digits than its factorization.

53450455740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80985562 (or 80985560 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 42.

The spelling of 53450455740 in words is "fifty-three billion, four hundred fifty million, four hundred fifty-five thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 80985539 161971078 242956617 323942156 404927695 485913234 809855390 890840929 971826468 1214783085 1619710780 1781681858 2429566170 2672522787 3563363716 4454204645 4859132340 5345045574 8908409290 10690091148 13362613935 17816818580 26725227870 53450455740