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252299320 = 23571369313
BaseRepresentation
bin11110000100111…
…00100000111000
3122120202010121021
433002130200320
51004042034240
641011352224
76152336350
oct1702344070
9576663537
10252299320
1111a464239
12705b2674
1340369150
1425717b60
151723a54a
hexf09c838

252299320 has 64 divisors (see below), whose sum is σ = 698685120. Its totient is φ = 79847424.

The previous prime is 252299303. The next prime is 252299353. The reversal of 252299320 is 23992252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31017 + ... + 38296.

It is an arithmetic number, because the mean of its divisors is an integer number (10916955).

Almost surely, 2252299320 is an apocalyptic number.

252299320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252299320 is an abundant number, since it is smaller than the sum of its proper divisors (446385800).

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

252299320 is a wasteful number, since it uses less digits than its factorization.

252299320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69344 (or 69340 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 252299320 is about 15883.9327623860. The cubic root of 252299320 is about 631.8859418696.

The spelling of 252299320 in words is "two hundred fifty-two million, two hundred ninety-nine thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 3640 69313 138626 277252 346565 485191 554504 693130 901069 970382 1386260 1802138 1940764 2425955 2772520 3604276 3881528 4505345 4851910 6307483 7208552 9010690 9703820 12614966 18021380 19407640 25229932 31537415 36042760 50459864 63074830 126149660 252299320