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253802880 = 27325139317
BaseRepresentation
bin11110010000010…
…11100110000000
3122200120112002200
433020023212000
51004433143010
641103513200
76201201042
oct1710134600
9580515080
10253802880
111202a0951
1270bb8800
1340774626
14259c9a92
1517435cc0
hexf20b980

253802880 has 192 divisors, whose sum is σ = 885502800. Its totient is φ = 66981888.

The previous prime is 253802873. The next prime is 253802881. The reversal of 253802880 is 88208352.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253802881) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 800482 + ... + 800798.

Almost surely, 2253802880 is an apocalyptic number.

253802880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253802880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442751400).

253802880 is an abundant number, since it is smaller than the sum of its proper divisors (631699920).

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

253802880 is a wasteful number, since it uses less digits than its factorization.

253802880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 253802880 is about 15931.1920457949. The cubic root of 253802880 is about 633.1386831797.

The spelling of 253802880 in words is "two hundred fifty-three million, eight hundred two thousand, eight hundred eighty".