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20087676 = 2234717521
BaseRepresentation
bin100110010100…
…0001101111100
31101210120010000
41030220031330
520120301201
61554314300
7332512440
oct114501574
941716100
1020087676
1110380194
126888990
1342142cb
14294c820
151b6bd86
hex132837c

20087676 has 120 divisors (see below), whose sum is σ = 63667296. Its totient is φ = 5391360.

The previous prime is 20087653. The next prime is 20087701. The reversal of 20087676 is 67678002.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20087676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38296 + ... + 38816.

Almost surely, 220087676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20087676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31833648).

20087676 is an abundant number, since it is smaller than the sum of its proper divisors (43579620).

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

20087676 is a wasteful number, since it uses less digits than its factorization.

20087676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 20087676 is about 4481.9277102604. The cubic root of 20087676 is about 271.8378322556.

The spelling of 20087676 in words is "twenty million, eighty-seven thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 21 27 28 34 36 42 51 54 63 68 81 84 102 108 119 126 153 162 189 204 238 252 306 324 357 378 459 476 521 567 612 714 756 918 1042 1071 1134 1377 1428 1563 1836 2084 2142 2268 2754 3126 3213 3647 4284 4689 5508 6252 6426 7294 8857 9378 9639 10941 12852 14067 14588 17714 18756 19278 21882 26571 28134 32823 35428 38556 42201 43764 53142 56268 61999 65646 79713 84402 98469 106284 123998 131292 159426 168804 185997 196938 239139 247996 295407 318852 371994 393876 478278 557991 590814 717417 743988 956556 1115982 1181628 1434834 1673973 2231964 2869668 3347946 5021919 6695892 10043838 20087676