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255010020 = 223519467479
BaseRepresentation
bin11110011001100…
…10010011100100
3122202211211222120
433030302103210
51010240310040
641145425540
76214356306
oct1714622344
9582754876
10255010020
11120a45891
127149b2b0
1340aa7c05
1425c21976
15175c37d0
hexf3324e4

255010020 has 96 divisors (see below), whose sum is σ = 754790400. Its totient is φ = 64151424.

The previous prime is 255009991. The next prime is 255010033. The reversal of 255010020 is 20010552.

255010020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2550100202 = 130060220600800800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 532141 + ... + 532619.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2255010020 is an apocalyptic number.

255010020 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 255010020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377395200).

255010020 is an abundant number, since it is smaller than the sum of its proper divisors (499780380).

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

255010020 is a wasteful number, since it uses less digits than its factorization.

255010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 255010020 is about 15969.0331579592. The cubic root of 255010020 is about 634.1408763230.

Adding to 255010020 its reverse (20010552), we get a palindrome (275020572).

The spelling of 255010020 in words is "two hundred fifty-five million, ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 467 479 570 934 958 1140 1401 1437 1868 1916 2335 2395 2802 2874 4670 4790 5604 5748 7005 7185 8873 9101 9340 9580 14010 14370 17746 18202 26619 27303 28020 28740 35492 36404 44365 45505 53238 54606 88730 91010 106476 109212 133095 136515 177460 182020 223693 266190 273030 447386 532380 546060 671079 894772 1118465 1342158 2236930 2684316 3355395 4250167 4473860 6710790 8500334 12750501 13421580 17000668 21250835 25501002 42501670 51002004 63752505 85003340 127505010 255010020