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255102100 = 225211317481
BaseRepresentation
bin11110011010010…
…00110010010100
3122210000112021221
433031020302110
51010301231400
641151420124
76215221621
oct1715106224
9583015257
10255102100
11120aa8a90
1271524644
1340b0aab6
1425c47348
15175e0c1a
hexf348c94

255102100 has 72 divisors (see below), whose sum is σ = 623460096. Its totient is φ = 89760000.

The previous prime is 255102097. The next prime is 255102103. The reversal of 255102100 is 1201552.

It is an interprime number because it is at equal distance from previous prime (255102097) and next prime (255102103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255102103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30360 + ... + 37840.

It is an arithmetic number, because the mean of its divisors is an integer number (8659168).

Almost surely, 2255102100 is an apocalyptic number.

255102100 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 255102100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311730048).

255102100 is an abundant number, since it is smaller than the sum of its proper divisors (368357996).

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

255102100 is a wasteful number, since it uses less digits than its factorization.

255102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537 (or 7530 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 255102100 is about 15971.9159777404. The cubic root of 255102100 is about 634.2171931480.

Adding to 255102100 its reverse (1201552), we get a palindrome (256303652).

The spelling of 255102100 in words is "two hundred fifty-five million, one hundred two thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 31 44 50 55 62 100 110 124 155 220 275 310 341 550 620 682 775 1100 1364 1550 1705 3100 3410 6820 7481 8525 14962 17050 29924 34100 37405 74810 82291 149620 164582 187025 231911 329164 374050 411455 463822 748100 822910 927644 1159555 1645820 2057275 2319110 2551021 4114550 4638220 5102042 5797775 8229100 10204084 11595550 12755105 23191100 25510210 51020420 63775525 127551050 255102100