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253763948 = 2263440987
BaseRepresentation
bin11110010000000…
…10000101101100
3122200111112200202
433020002011230
51004430421243
641103013032
76200646404
oct1710020554
9580445622
10253763948
11120274679
1270b9a178
134075c9a9
14259b9804
15174294b8
hexf20216c

253763948 has 6 divisors (see below), whose sum is σ = 444086916. Its totient is φ = 126881972.

The previous prime is 253763933. The next prime is 253763957. The reversal of 253763948 is 849367352.

It is a happy number.

It is a super-2 number, since 2×2537639482 = 128792282609093408, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31720490 + ... + 31720497.

It is an arithmetic number, because the mean of its divisors is an integer number (74014486).

Almost surely, 2253763948 is an apocalyptic number.

It is an amenable number.

253763948 is a deficient number, since it is larger than the sum of its proper divisors (190322968).

253763948 is a wasteful number, since it uses less digits than its factorization.

253763948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63440991 (or 63440989 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 253763948 is about 15929.9701192438. The cubic root of 253763948 is about 633.1063081653.

The spelling of 253763948 in words is "two hundred fifty-three million, seven hundred sixty-three thousand, nine hundred forty-eight".

Divisors: 1 2 4 63440987 126881974 253763948