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20627160 = 23351983109
BaseRepresentation
bin100111010101…
…1111011011000
31102210222010220
41032223323120
520240032120
62014040040
7340220331
oct116537330
942728126
1020627160
1110709544
126aa9020
134372a28
142a4d288
151c26b40
hex13abed8

20627160 has 128 divisors (see below), whose sum is σ = 66528000. Its totient is φ = 5101056.

The previous prime is 20627153. The next prime is 20627197. The reversal of 20627160 is 6172602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20627160.

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, 189186 + ... + 189294.

It is an arithmetic number, because the mean of its divisors is an integer number (519750).

Almost surely, 220627160 is an apocalyptic number.

20627160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20627160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33264000).

20627160 is an abundant number, since it is smaller than the sum of its proper divisors (45900840).

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

20627160 is a wasteful number, since it uses less digits than its factorization.

20627160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20627160 is about 4541.7133330936. The cubic root of 20627160 is about 274.2499007680.

Adding to 20627160 its reverse (6172602), we get a palindrome (26799762).

The spelling of 20627160 in words is "twenty million, six hundred twenty-seven thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 60 76 83 95 109 114 120 152 166 190 218 228 249 285 327 332 380 415 436 456 498 545 570 654 664 760 830 872 996 1090 1140 1245 1308 1577 1635 1660 1992 2071 2180 2280 2490 2616 3154 3270 3320 4142 4360 4731 4980 6213 6308 6540 7885 8284 9047 9462 9960 10355 12426 12616 13080 15770 16568 18094 18924 20710 23655 24852 27141 31065 31540 36188 37848 41420 45235 47310 49704 54282 62130 63080 72376 82840 90470 94620 108564 124260 135705 171893 180940 189240 217128 248520 271410 343786 361880 515679 542820 687572 859465 1031358 1085640 1375144 1718930 2062716 2578395 3437860 4125432 5156790 6875720 10313580 20627160