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253481108 = 22612813697
BaseRepresentation
bin11110001101111…
…01000010010100
3122122222011201012
433012331002110
51004342343413
641052551352
76165360656
oct1706750224
9578864635
10253481108
111200a1121
1270a82558
134069102a
14259446d6
15173c07a8
hexf1bd094

253481108 has 24 divisors (see below), whose sum is σ = 452590824. Its totient is φ = 124185600.

The previous prime is 253481069. The next prime is 253481113. The reversal of 253481108 is 801184352.

253481108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 925444 + 252555664 = 962^2 + 15892^2 .

It is a super-2 number, since 2×2534811082 = 128505344225815328, which contains 22 as substring.

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, 66716 + ... + 70412.

It is an arithmetic number, because the mean of its divisors is an integer number (18857951).

Almost surely, 2253481108 is an apocalyptic number.

It is an amenable number.

253481108 is a deficient number, since it is larger than the sum of its proper divisors (199109716).

253481108 is a wasteful number, since it uses less digits than its factorization.

253481108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 253481108 is about 15921.0900380596. The cubic root of 253481108 is about 632.8710050300.

The spelling of 253481108 in words is "two hundred fifty-three million, four hundred eighty-one thousand, one hundred eight".

Divisors: 1 2 4 61 122 244 281 562 1124 3697 7394 14788 17141 34282 68564 225517 451034 902068 1038857 2077714 4155428 63370277 126740554 253481108