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263068980 = 22354384483
BaseRepresentation
bin11111010111000…
…01110100110100
3200100000021210120
433223201310310
51014321201410
642034251540
76343022646
oct1753416464
9610007716
10263068980
1112554a689
1274126bb0
134266a125
1426d1c896
1518166570
hexfae1d34

263068980 has 24 divisors (see below), whose sum is σ = 736593312. Its totient is φ = 70151712.

The previous prime is 263068957. The next prime is 263069021. The reversal of 263068980 is 89860362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2192182 + ... + 2192301.

It is an arithmetic number, because the mean of its divisors is an integer number (30691388).

Almost surely, 2263068980 is an apocalyptic number.

263068980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263068980 is an abundant number, since it is smaller than the sum of its proper divisors (473524332).

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

263068980 is a wasteful number, since it uses less digits than its factorization.

263068980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4384495 (or 4384493 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 263068980 is about 16219.4013453025. The cubic root of 263068980 is about 640.7518670176.

The spelling of 263068980 in words is "two hundred sixty-three million, sixty-eight thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4384483 8768966 13153449 17537932 21922415 26306898 43844830 52613796 65767245 87689660 131534490 263068980