Search a number
-
+
102808230 = 2357796197
BaseRepresentation
bin1100010000010…
…11101010100110
321011110012101020
412020023222212
5202304330410
614111312010
72355566310
oct610135246
9234405336
10102808230
115303a388
122a51b606
13183b7a95
14d9227b0
15905ba70
hex620baa6

102808230 has 64 divisors (see below), whose sum is σ = 285603840. Its totient is φ = 23197824.

The previous prime is 102808207. The next prime is 102808243. The reversal of 102808230 is 32808201.

It is a self number, because there is not a number n which added to its sum of digits gives 102808230.

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, 13492 + ... + 19688.

It is an arithmetic number, because the mean of its divisors is an integer number (4462560).

Almost surely, 2102808230 is an apocalyptic number.

102808230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102808230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142801920).

102808230 is an abundant number, since it is smaller than the sum of its proper divisors (182795610).

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

102808230 is a wasteful number, since it uses less digits than its factorization.

102808230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 102808230 is about 10139.4393336121. The cubic root of 102808230 is about 468.4637178152.

The spelling of 102808230 in words is "one hundred two million, eight hundred eight thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 79 105 158 210 237 395 474 553 790 1106 1185 1659 2370 2765 3318 5530 6197 8295 12394 16590 18591 30985 37182 43379 61970 86758 92955 130137 185910 216895 260274 433790 489563 650685 979126 1301370 1468689 2447815 2937378 3426941 4895630 6853882 7343445 10280823 14686890 17134705 20561646 34269410 51404115 102808230