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138271382 = 2532515197
BaseRepresentation
bin10000011110111…
…01101010010110
3100122011220200022
420033131222112
5240344141012
621415345142
73266200364
oct1017355226
9318156608
10138271382
1171061377
123a3821b2
13228535b2
1414514634
15c214472
hex83dda96

138271382 has 16 divisors (see below), whose sum is σ = 212203152. Its totient is φ = 67548000.

The previous prime is 138271361. The next prime is 138271429. The reversal of 138271382 is 283172831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24008 + ... + 29204.

It is an arithmetic number, because the mean of its divisors is an integer number (13262697).

Almost surely, 2138271382 is an apocalyptic number.

138271382 is a deficient number, since it is larger than the sum of its proper divisors (73931770).

138271382 is a wasteful number, since it uses less digits than its factorization.

138271382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503.

The product of its digits is 16128, while the sum is 35.

The square root of 138271382 is about 11758.8852362798. The cubic root of 138271382 is about 517.1034490764.

The spelling of 138271382 in words is "one hundred thirty-eight million, two hundred seventy-one thousand, three hundred eighty-two".

Divisors: 1 2 53 106 251 502 5197 10394 13303 26606 275441 550882 1304447 2608894 69135691 138271382