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268450028 = 227211124513
BaseRepresentation
bin10000000000000…
…011100011101100
3200201010200012122
4100000003203230
51022210400103
642345452112
76436534100
oct2000034354
9621120178
10268450028
11128595530
1275aa1038
1343802492
142791d900
151887ab38
hex100038ec

268450028 has 36 divisors (see below), whose sum is σ = 596173032. Its totient is φ = 104590080.

The previous prime is 268450019. The next prime is 268450037. The reversal of 268450028 is 820054862.

It is an interprime number because it is at equal distance from previous prime (268450019) and next prime (268450037).

It is a self number, because there is not a number n which added to its sum of digits gives 268450028.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60101 + ... + 64412.

It is an arithmetic number, because the mean of its divisors is an integer number (16560362).

Almost surely, 2268450028 is an apocalyptic number.

268450028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

268450028 is an abundant number, since it is smaller than the sum of its proper divisors (327723004).

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

268450028 is a wasteful number, since it uses less digits than its factorization.

268450028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124542 (or 124533 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 268450028 is about 16384.4446961134. Note that the first 3 decimals coincide. The cubic root of 268450028 is about 645.0912500349.

The spelling of 268450028 in words is "two hundred sixty-eight million, four hundred fifty thousand, twenty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 124513 249026 498052 871591 1369643 1743182 2739286 3486364 5478572 6101137 9587501 12202274 19175002 24404548 38350004 67112507 134225014 268450028