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253008704 = 2613417417
BaseRepresentation
bin11110001010010…
…01101101000000
3122122002011200202
433011021231000
51004232234304
641034504332
76161352464
oct1705115500
9578064622
10253008704
1111a8a9203
12708950a8
1340556cc0
14258604a4
151732a81e
hexf149b40

253008704 has 56 divisors (see below), whose sum is σ = 553946568. Its totient is φ = 113909760.

The previous prime is 253008659. The next prime is 253008719. The reversal of 253008704 is 407800352.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1849600 + 251159104 = 1360^2 + 15848^2 .

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, 30404 + ... + 37820.

It is an arithmetic number, because the mean of its divisors is an integer number (9891903).

Almost surely, 2253008704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253008704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276973284).

253008704 is an abundant number, since it is smaller than the sum of its proper divisors (300937864).

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

253008704 is a wasteful number, since it uses less digits than its factorization.

253008704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7483 (or 7473 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 253008704 is about 15906.2473261294. The cubic root of 253008704 is about 632.4776072519.

The spelling of 253008704 in words is "two hundred fifty-three million, eight thousand, seven hundred four".

Divisors: 1 2 4 8 13 16 26 32 41 52 64 82 104 164 208 328 416 533 656 832 1066 1312 2132 2624 4264 7417 8528 14834 17056 29668 34112 59336 96421 118672 192842 237344 304097 385684 474688 608194 771368 1216388 1542736 2432776 3085472 3953261 4865552 6170944 7906522 9731104 15813044 19462208 31626088 63252176 126504352 253008704