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31380214577648 = 243753007119219
BaseRepresentation
bin1110010001010010001101…
…00010101111100111110000
311010002220211002220221220112
413020221012202233213300
513103113134412441043
6150423512131400452
76416100653623166
oct710510642574760
9133086732827815
1031380214577648
119aa9302059722
123629842453128
1314681abc5ab01
147a6b4bda9236
15396410e56518
hex1c8a468af9f0

31380214577648 has 20 divisors (see below), whose sum is σ = 62442386441160. Its totient is φ = 15266050334784.

The previous prime is 31380214577587. The next prime is 31380214577653. The reversal of 31380214577648 is 84677541208313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26503559018 + ... + 26503560201.

It is an arithmetic number, because the mean of its divisors is an integer number (3122119322058).

Almost surely, 231380214577648 is an apocalyptic number.

It is an amenable number.

31380214577648 is a deficient number, since it is larger than the sum of its proper divisors (31062171863512).

31380214577648 is a wasteful number, since it uses less digits than its factorization.

31380214577648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53007119264 (or 53007119258 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 59.

The spelling of 31380214577648 in words is "thirty-one trillion, three hundred eighty billion, two hundred fourteen million, five hundred seventy-seven thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 37 74 148 296 592 53007119219 106014238438 212028476876 424056953752 848113907504 1961263411103 3922526822206 7845053644412 15690107288824 31380214577648