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263028942 = 232112295801
BaseRepresentation
bin11111010110110…
…00000011001110
3200022221020212200
433223120003032
51014313411232
642033342330
76342465141
oct1753300316
9608836780
10263028942
111255225a0
12741079a6
1342654b37
1426d0c058
151815977c
hexfad80ce

263028942 has 48 divisors (see below), whose sum is σ = 624527280. Its totient is φ = 79344000.

The previous prime is 263028929. The next prime is 263028977. The reversal of 263028942 is 249820362.

It is a junction number, because it is equal to n+sod(n) for n = 263028897 and 263028906.

It is a congruent number.

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, 42442 + ... + 48242.

It is an arithmetic number, because the mean of its divisors is an integer number (13010985).

Almost surely, 2263028942 is an apocalyptic number.

263028942 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 263028942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312263640).

263028942 is an abundant number, since it is smaller than the sum of its proper divisors (361498338).

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

263028942 is a wasteful number, since it uses less digits than its factorization.

263028942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6049 (or 6046 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 263028942 is about 16218.1670357658. The cubic root of 263028942 is about 640.7193587824.

The spelling of 263028942 in words is "two hundred sixty-three million, twenty-eight thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 229 458 687 1374 2061 2519 4122 5038 5801 7557 11602 15114 17403 22671 34806 45342 52209 63811 104418 127622 191433 382866 574299 1148598 1328429 2656858 3985287 7970574 11955861 14612719 23911722 29225438 43838157 87676314 131514471 263028942