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138350168 = 23112117451
BaseRepresentation
bin10000011111100…
…00111001011000
3100122022220202022
420033300321120
5240404201133
621421154012
73266646155
oct1017607130
9318286668
10138350168
1171105590
123a3bb908
1322880408
141453522c
15c22c998
hex83f0e58

138350168 has 32 divisors (see below), whose sum is σ = 284368320. Its totient is φ = 62580000.

The previous prime is 138350167. The next prime is 138350183. The reversal of 138350168 is 861053831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138350167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14843 + ... + 22293.

It is an arithmetic number, because the mean of its divisors is an integer number (8886510).

Almost surely, 2138350168 is an apocalyptic number.

It is an amenable number.

138350168 is an abundant number, since it is smaller than the sum of its proper divisors (146018152).

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

138350168 is a wasteful number, since it uses less digits than its factorization.

138350168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7679 (or 7675 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 138350168 is about 11762.2348216655. The cubic root of 138350168 is about 517.2016443219.

The spelling of 138350168 in words is "one hundred thirty-eight million, three hundred fifty thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 211 422 844 1688 2321 4642 7451 9284 14902 18568 29804 59608 81961 163922 327844 655688 1572161 3144322 6288644 12577288 17293771 34587542 69175084 138350168