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20376804 = 22372353199
BaseRepresentation
bin100110110111…
…0110011100100
31102100020201110
41031232303210
520204024204
62004425020
7335125410
oct115566344
942306643
1020376804
1110558438
1269a8170
1342b5aa6
1429c5d40
151bc7889
hex136ece4

20376804 has 96 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 5436288.

The previous prime is 20376779. The next prime is 20376841. The reversal of 20376804 is 40867302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102297 + ... + 102495.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 220376804 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 20376804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29030400).

20376804 is an abundant number, since it is smaller than the sum of its proper divisors (37683996).

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

20376804 is a wasteful number, since it uses less digits than its factorization.

20376804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20376804 is about 4514.0673455322. The cubic root of 20376804 is about 273.1358392262.

The spelling of 20376804 in words is "twenty million, three hundred seventy-six thousand, eight hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 53 69 84 92 106 138 159 161 199 212 276 318 322 371 398 483 597 636 644 742 796 966 1113 1194 1219 1393 1484 1932 2226 2388 2438 2786 3657 4179 4452 4577 4876 5572 7314 8358 8533 9154 10547 13731 14628 16716 17066 18308 21094 25599 27462 31641 32039 34132 42188 51198 54924 63282 64078 73829 96117 102396 126564 128156 147658 192234 221487 242581 295316 384468 442974 485162 727743 885948 970324 1455486 1698067 2910972 3396134 5094201 6792268 10188402 20376804