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385538937 = 371719113503
BaseRepresentation
bin10110111110101…
…101101101111001
3222212110101222220
4112332231231321
51242144221222
6102131234253
712361012140
oct2676555571
9885411886
10385538937
11188699123
12a9148989
1361b4a364
14392bc757
1523ca8b5c
hex16fadb79

385538937 has 64 divisors (see below), whose sum is σ = 661893120. Its totient is φ = 194310144.

The previous prime is 385538921. The next prime is 385538939. The reversal of 385538937 is 739835583.

It is not a de Polignac number, because 385538937 - 24 = 385538921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 385538937.

It is not an unprimeable number, because it can be changed into a prime (385538939) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 766228 + ... + 766730.

It is an arithmetic number, because the mean of its divisors is an integer number (10342080).

Almost surely, 2385538937 is an apocalyptic number.

It is an amenable number.

385538937 is a deficient number, since it is larger than the sum of its proper divisors (276354183).

385538937 is a wasteful number, since it uses less digits than its factorization.

385538937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662.

The product of its digits is 2721600, while the sum is 51.

The square root of 385538937 is about 19635.1454540067. The cubic root of 385538937 is about 727.8179269595.

The spelling of 385538937 in words is "three hundred eighty-five million, five hundred thirty-eight thousand, nine hundred thirty-seven".

Divisors: 1 3 7 17 19 21 51 57 113 119 133 323 339 357 399 503 791 969 1509 1921 2147 2261 2373 3521 5763 6441 6783 8551 9557 10563 13447 15029 25653 28671 36499 40341 45087 56839 59857 66899 109497 162469 170517 179571 200697 255493 397873 487407 766479 966263 1079941 1137283 1193619 2898789 3239823 3411849 6763841 7559587 18358997 20291523 22678761 55076991 128512979 385538937