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138297350 = 25271163239
BaseRepresentation
bin10000011111001…
…00000000000110
3100122020020022002
420033210000012
5240401003400
621420105302
73266336162
oct1017440006
9318206262
10138297350
1171079934
123a395232
1322862369
141451dca2
15c21bed5
hex83e4006

138297350 has 48 divisors (see below), whose sum is σ = 263554560. Its totient is φ = 53978400.

The previous prime is 138297343. The next prime is 138297353. The reversal of 138297350 is 53792831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138297353) 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, 578531 + ... + 578769.

It is an arithmetic number, because the mean of its divisors is an integer number (5490720).

Almost surely, 2138297350 is an apocalyptic number.

138297350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138297350 is a deficient number, since it is larger than the sum of its proper divisors (125257210).

138297350 is a wasteful number, since it uses less digits than its factorization.

138297350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 138297350 is about 11759.9893707435. The cubic root of 138297350 is about 517.1358185169.

The spelling of 138297350 in words is "one hundred thirty-eight million, two hundred ninety-seven thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 71 142 163 239 326 355 478 710 815 1195 1630 1775 2390 3550 4075 5975 8150 11573 11950 16969 23146 33938 38957 57865 77914 84845 115730 169690 194785 289325 389570 424225 578650 848450 973925 1947850 2765947 5531894 13829735 27659470 69148675 138297350