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138160386 = 23271384347
BaseRepresentation
bin10000011110000…
…10100100000010
3100121222021102100
420033002210002
5240332113021
621413131230
73265225650
oct1017024402
9317867370
10138160386
1170a95a41
123a329b16
1322814c10
14144c5dd0
15c1e1626
hex83c2902

138160386 has 48 divisors (see below), whose sum is σ = 368432064. Its totient is φ = 36437472.

The previous prime is 138160369. The next prime is 138160409. The reversal of 138160386 is 683061831.

138160386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138160386.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40536 + ... + 43811.

It is an arithmetic number, because the mean of its divisors is an integer number (7675668).

Almost surely, 2138160386 is an apocalyptic number.

138160386 is an abundant number, since it is smaller than the sum of its proper divisors (230271678).

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

138160386 is a wasteful number, since it uses less digits than its factorization.

138160386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84375 (or 84372 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 138160386 is about 11754.1646236557. The cubic root of 138160386 is about 516.9650454564.

The spelling of 138160386 in words is "one hundred thirty-eight million, one hundred sixty thousand, three hundred eighty-six".

Divisors: 1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1638 84347 168694 253041 506082 590429 759123 1096511 1180858 1518246 1771287 2193022 3289533 3542574 5313861 6579066 7675577 9868599 10627722 15351154 19737198 23026731 46053462 69080193 138160386