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255428010 = 232515718077
BaseRepresentation
bin11110011100110…
…00010110101010
3122210122002100200
433032120112222
51010342144020
641202413030
76221050035
oct1716302652
9583562320
10255428010
11121200932
1271661176
1340bc3246
1425cd001c
1517657590
hexf3985aa

255428010 has 48 divisors (see below), whose sum is σ = 668379816. Its totient is φ = 67676544.

The previous prime is 255427961. The next prime is 255428023. The reversal of 255428010 is 10824552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 238609809 + 16818201 = 15447^2 + 4101^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5092 + ... + 23168.

Almost surely, 2255428010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255428010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334189908).

255428010 is an abundant number, since it is smaller than the sum of its proper divisors (412951806).

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

255428010 is a wasteful number, since it uses less digits than its factorization.

255428010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18247 (or 18244 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 255428010 is about 15982.1153168159. The cubic root of 255428010 is about 634.4871631776.

The spelling of 255428010 in words is "two hundred fifty-five million, four hundred twenty-eight thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 157 314 471 785 942 1413 1570 2355 2826 4710 7065 14130 18077 36154 54231 90385 108462 162693 180770 271155 325386 542310 813465 1626930 2838089 5676178 8514267 14190445 17028534 25542801 28380890 42571335 51085602 85142670 127714005 255428010