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253866496 = 291343887
BaseRepresentation
bin11110010000110…
…11001000000000
3122200200202100211
433020123020000
51004442211441
641105123504
76201554362
oct1710331000
9580622324
10253866496
11120334724
1271029594
1340797580
1425a04d32
1517449a81
hexf21b200

253866496 has 80 divisors (see below), whose sum is σ = 559589184. Its totient is φ = 114315264.

The previous prime is 253866463. The next prime is 253866497. The reversal of 253866496 is 694668352.

It is not an unprimeable number, because it can be changed into a prime (253866497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285765 + ... + 286651.

Almost surely, 2253866496 is an apocalyptic number.

253866496 is a gapful number since it is divisible by the number (26) 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 253866496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279794592).

253866496 is an abundant number, since it is smaller than the sum of its proper divisors (305722688).

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

253866496 is an equidigital number, since it uses as much as digits as its factorization.

253866496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 945 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The square root of 253866496 is about 15933.1885070127. The cubic root of 253866496 is about 633.1915777538.

The spelling of 253866496 in words is "two hundred fifty-three million, eight hundred sixty-six thousand, four hundred ninety-six".

Divisors: 1 2 4 8 13 16 26 32 43 52 64 86 104 128 172 208 256 344 416 512 559 688 832 887 1118 1376 1664 1774 2236 2752 3328 3548 4472 5504 6656 7096 8944 11008 11531 14192 17888 22016 23062 28384 35776 38141 46124 56768 71552 76282 92248 113536 143104 152564 184496 227072 286208 305128 368992 454144 495833 610256 737984 991666 1220512 1475968 1983332 2441024 2951936 3966664 4882048 5903872 7933328 9764096 15866656 19528192 31733312 63466624 126933248 253866496