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253333480 = 2356333337
BaseRepresentation
bin11110001100110…
…00111111101000
3122122200200012111
433012120333220
51004323132410
641045452104
76164204401
oct1706307750
9578620174
10253333480
11120000214
1270a11034
134063ba8a
14259069a8
1517391b8a
hexf198fe8

253333480 has 16 divisors (see below), whose sum is σ = 570000420. Its totient is φ = 101333376.

The previous prime is 253333469. The next prime is 253333543. The reversal of 253333480 is 84333352.

It can be written as a sum of positive squares in 2 ways, for example, as 250715556 + 2617924 = 15834^2 + 1618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3166629 + ... + 3166708.

Almost surely, 2253333480 is an apocalyptic number.

253333480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253333480 is an abundant number, since it is smaller than the sum of its proper divisors (316666940).

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

253333480 is a wasteful number, since it uses less digits than its factorization.

253333480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6333348 (or 6333344 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 253333480 is about 15916.4531224768. The cubic root of 253333480 is about 632.7481193112.

The spelling of 253333480 in words is "two hundred fifty-three million, three hundred thirty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 6333337 12666674 25333348 31666685 50666696 63333370 126666740 253333480