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83094921 = 32713711429
BaseRepresentation
bin1001111001111…
…10110110001001
312210100122210200
410330332312021
5132233014141
612125002413
72026203150
oct474766611
9183318720
1083094921
11429a5498
12239b3409
13142a4cc0
14b070597
157465ab6
hex4f3ed89

83094921 has 48 divisors (see below), whose sum is σ = 149909760. Its totient is φ = 43182720.

The previous prime is 83094917. The next prime is 83094943. The reversal of 83094921 is 12949038.

It is not a de Polignac number, because 83094921 - 22 = 83094917 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (83095921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57435 + ... + 58863.

It is an arithmetic number, because the mean of its divisors is an integer number (3123120).

Almost surely, 283094921 is an apocalyptic number.

It is an amenable number.

83094921 is a deficient number, since it is larger than the sum of its proper divisors (66814839).

83094921 is a wasteful number, since it uses less digits than its factorization.

83094921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 83094921 is about 9115.6415572356. The cubic root of 83094921 is about 436.3732897841.

The spelling of 83094921 in words is "eighty-three million, ninety-four thousand, nine hundred twenty-one".

Divisors: 1 3 7 9 13 21 39 63 71 91 117 213 273 497 639 819 923 1429 1491 2769 4287 4473 6461 8307 10003 12861 18577 19383 30009 55731 58149 90027 101459 130039 167193 304377 390117 710213 913131 1170351 1318967 2130639 3956901 6391917 9232769 11870703 27698307 83094921