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52144405215 = 357361166147
BaseRepresentation
bin110000100100000011…
…000111101011011111
311222121000220020120020
4300210003013223133
51323242431431330
635542123323223
73524121063000
oct604403075337
9158530806506
1052144405215
1120129180471
12a133080513
134bc0107556
1427494591a7
151552c7e210
hexc240c7adf

52144405215 has 64 divisors (see below), whose sum is σ = 98891289600. Its totient is φ = 23446523520.

The previous prime is 52144405207. The next prime is 52144405217. The reversal of 52144405215 is 51250444125.

It is a happy number.

52144405215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52144405215 - 23 = 52144405207 is a prime.

It is a super-2 number, since 2×521444052152 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52144405217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 230772 + ... + 396918.

It is an arithmetic number, because the mean of its divisors is an integer number (1545176400).

Almost surely, 252144405215 is an apocalyptic number.

52144405215 is a deficient number, since it is larger than the sum of its proper divisors (46746884385).

52144405215 is a wasteful number, since it uses less digits than its factorization.

52144405215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166237 (or 166223 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 52144405215 in words is "fifty-two billion, one hundred forty-four million, four hundred five thousand, two hundred fifteen".

Divisors: 1 3 5 7 15 21 35 49 61 105 147 183 245 305 343 427 735 915 1029 1281 1715 2135 2989 5145 6405 8967 14945 20923 44835 62769 104615 166147 313845 498441 830735 1163029 2492205 3489087 5815145 8141203 10134967 17445435 24423609 30404901 40706015 50674835 56988421 70944769 122118045 152024505 170965263 212834307 284942105 354723845 496613383 854826315 1064171535 1489840149 2483066915 3476293681 7449200745 10428881043 17381468405 52144405215