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2138069610 = 2325113210233
BaseRepresentation
bin111111101110000…
…0101101001101010
312112000011012010100
41333130011221222
513334321211420
6552054130230
7103661202045
oct17734055152
95460135110
102138069610
119a7980386
124b8050976
13280c59b61
14163d59c5c
15c7a87190
hex7f705a6a

2138069610 has 48 divisors (see below), whose sum is σ = 5608202184. Its totient is φ = 565103616.

The previous prime is 2138069603. The next prime is 2138069611. The reversal of 2138069610 is 169608312.

2138069610 is a `hidden beast` number, since 2 + 1 + 38 + 0 + 6 + 9 + 610 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1523575089 + 614494521 = 39033^2 + 24789^2 .

It is not an unprimeable number, because it can be changed into a prime (2138069611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94947 + ... + 115286.

Almost surely, 22138069610 is an apocalyptic number.

2138069610 is an abundant number, since it is smaller than the sum of its proper divisors (3470132574).

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

2138069610 is a wasteful number, since it uses less digits than its factorization.

2138069610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210359 (or 210356 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2138069610 is about 46239.2648081693. The cubic root of 2138069610 is about 1288.2711471667.

The spelling of 2138069610 in words is "two billion, one hundred thirty-eight million, sixty-nine thousand, six hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 113 226 339 565 678 1017 1130 1695 2034 3390 5085 10170 210233 420466 630699 1051165 1261398 1892097 2102330 3153495 3784194 6306990 9460485 18920970 23756329 47512658 71268987 118781645 142537974 213806961 237563290 356344935 427613922 712689870 1069034805 2138069610