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52665809790 = 23511315148173
BaseRepresentation
bin110001000011001000…
…000111101101111110
312000221101000100011210
4301003020013231332
51330324421403130
640105551025250
73543051665646
oct610310075576
9160841010153
1052665809790
1120376527440
12a25980b226
134c74145179
1427987c3526
1515839245b0
hexc43207b7e

52665809790 has 64 divisors (see below), whose sum is σ = 142336714752. Its totient is φ = 12355612800.

The previous prime is 52665809773. The next prime is 52665809863. The reversal of 52665809790 is 9790856625.

52665809790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 52665809790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2563857 + ... + 2584316.

It is an arithmetic number, because the mean of its divisors is an integer number (2224011168).

Almost surely, 252665809790 is an apocalyptic number.

52665809790 is an abundant number, since it is smaller than the sum of its proper divisors (89670904962).

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

52665809790 is a wasteful number, since it uses less digits than its factorization.

52665809790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148225.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 52665809790 in words is "fifty-two billion, six hundred sixty-five million, eight hundred nine thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 31 33 55 62 66 93 110 155 165 186 310 330 341 465 682 930 1023 1705 2046 3410 5115 10230 5148173 10296346 15444519 25740865 30889038 51481730 56629903 77222595 113259806 154445190 159593363 169889709 283149515 319186726 339779418 478780089 566299030 797966815 849448545 957560178 1595933630 1698897090 1755526993 2393900445 3511053986 4787800890 5266580979 8777634965 10533161958 17555269930 26332904895 52665809790