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252270648 = 233272711847
BaseRepresentation
bin11110000100101…
…01100000111000
3122120200200021100
433002111200320
51004040130043
641011011400
76152156640
oct1702254070
9576620240
10252270648
1111a444743
1270599b60
1340359096
142570b520
1517231cd3
hexf095838

252270648 has 96 divisors (see below), whose sum is σ = 784143360. Its totient is φ = 71772480.

The previous prime is 252270631. The next prime is 252270649. The reversal of 252270648 is 846072252.

252270648 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 7 + 0 + 648 = 666.

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 (252270649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135661 + ... + 137507.

It is an arithmetic number, because the mean of its divisors is an integer number (8168160).

Almost surely, 2252270648 is an apocalyptic number.

252270648 is a gapful number since it is divisible by the number (28) 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 252270648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392071680).

252270648 is an abundant number, since it is smaller than the sum of its proper divisors (531872712).

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

252270648 is a wasteful number, since it uses less digits than its factorization.

252270648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 252270648 is about 15883.0301894821. The cubic root of 252270648 is about 631.8620045345.

The spelling of 252270648 in words is "two hundred fifty-two million, two hundred seventy thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 271 504 542 813 1084 1626 1847 1897 2168 2439 3252 3694 3794 4878 5541 5691 6504 7388 7588 9756 11082 11382 12929 14776 15176 16623 17073 19512 22164 22764 25858 33246 34146 38787 44328 45528 51716 66492 68292 77574 103432 116361 132984 136584 155148 232722 310296 465444 500537 930888 1001074 1501611 2002148 3003222 3503759 4004296 4504833 6006444 7007518 9009666 10511277 12012888 14015036 18019332 21022554 28030072 31533831 36038664 42045108 63067662 84090216 126135324 252270648