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248306985380 = 22553234251873
BaseRepresentation
bin1110011101000000111…
…1111110100110100100
3212201220221101210200002
43213100033332212210
513032013042013010
6310023132240432
723640164360036
oct3472017764644
9781827353602
10248306985380
1196340902313
1240159610118
131a5523b9cac
14c037a27c56
1566d43951a5
hex39d03fe9a4

248306985380 has 24 divisors (see below), whose sum is σ = 531283250232. Its totient is φ = 97448778752.

The previous prime is 248306985373. The next prime is 248306985383. The reversal of 248306985380 is 83589603842.

It can be written as a sum of positive squares in 4 ways, for example, as 122802586624 + 125504398756 = 350432^2 + 354266^2 .

It is not an unprimeable number, because it can be changed into a prime (248306985383) 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, 117124877 + ... + 117126996.

It is an arithmetic number, because the mean of its divisors is an integer number (22136802093).

Almost surely, 2248306985380 is an apocalyptic number.

248306985380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248306985380 is an abundant number, since it is smaller than the sum of its proper divisors (282976264852).

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

248306985380 is a wasteful number, since it uses less digits than its factorization.

248306985380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234251935 (or 234251933 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 248306985380 in words is "two hundred forty-eight billion, three hundred six million, nine hundred eighty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 234251873 468503746 937007492 1171259365 2342518730 4685037460 12415349269 24830698538 49661397076 62076746345 124153492690 248306985380