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52992657018 = 23272345740013
BaseRepresentation
bin110001010110100110…
…111100011001111010
312001210011000220021200
4301112212330121322
51332012110011033
640202224315030
73554131103220
oct612646743172
9161704026250
1052992657018
1120523a78614
12a32b172a76
134cc6a82bb2
1427c9d84b10
1515a2488013
hexc569bc67a

52992657018 has 96 divisors (see below), whose sum is σ = 137228173056. Its totient is φ = 14450413824.

The previous prime is 52992657017. The next prime is 52992657031. The reversal of 52992657018 is 81075629925.

52992657018 is a `hidden beast` number, since 52 + 9 + 9 + 2 + 6 + 570 + 18 = 666.

It is not an unprimeable number, because it can be changed into a prime (52992657017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1304380 + ... + 1344392.

It is an arithmetic number, because the mean of its divisors is an integer number (1429460136).

Almost surely, 252992657018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52992657018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68614086528).

52992657018 is an abundant number, since it is smaller than the sum of its proper divisors (84235516038).

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

52992657018 is a wasteful number, since it uses less digits than its factorization.

52992657018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40508 (or 40505 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 52992657018 in words is "fifty-two billion, nine hundred ninety-two million, six hundred fifty-seven thousand, eighteen".

Divisors: 1 2 3 6 7 9 14 18 21 23 42 46 63 69 126 138 161 207 322 414 457 483 914 966 1371 1449 2742 2898 3199 4113 6398 8226 9597 10511 19194 21022 28791 31533 40013 57582 63066 73577 80026 94599 120039 147154 189198 220731 240078 280091 360117 441462 560182 662193 720234 840273 920299 1324386 1680546 1840598 2520819 2760897 5041638 5521794 6442093 8282691 12884186 16565382 18285941 19326279 36571882 38652558 54857823 57978837 109715646 115957674 128001587 164573469 256003174 329146938 384004761 420576643 768009522 841153286 1152014283 1261729929 2304028566 2523459858 2944036501 3785189787 5888073002 7570379574 8832109503 17664219006 26496328509 52992657018