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252080309776 = 2431240492
BaseRepresentation
bin1110101011000100101…
…0000100011000010000
3220002122220120112122111
43222301022010120100
513112230024403101
6311445403515104
724132533164561
oct3526112043020
9802586515574
10252080309776
11979a7843829
1240a31228a94
131aa04074619
14c2b4c14168
156855792251
hex3ab1284610

252080309776 has 45 divisors (see below), whose sum is σ = 504793517133. Its totient is φ = 121944218880.

The previous prime is 252080309753. The next prime is 252080309777. The reversal of 252080309776 is 677903080252.

The square root of 252080309776 is 502076.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 61565519376 + 190514790400 = 248124^2 + 436480^2 .

It is not an unprimeable number, because it can be changed into a prime (252080309777) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 62255400 + ... + 62259448.

Almost surely, 2252080309776 is an apocalyptic number.

252080309776 is the 502076-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252080309776

252080309776 is an abundant number, since it is smaller than the sum of its proper divisors (252713207357).

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

252080309776 is an frugal number, since it uses more digits than its factorization.

252080309776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8168 (or 4082 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

Multiplying 252080309776 by its sum of digits (49), we get a square (12351935179024 = 35145322).

The spelling of 252080309776 in words is "two hundred fifty-two billion, eighty million, three hundred nine thousand, seven hundred seventy-six".

Divisors: 1 2 4 8 16 31 62 124 248 496 961 1922 3844 4049 7688 8098 15376 16196 32392 64784 125519 251038 502076 1004152 2008304 3891089 7782178 15564356 16394401 31128712 32788802 62257424 65577604 131155208 262310416 508226431 1016452862 2032905724 4065811448 8131622896 15755019361 31510038722 63020077444 126040154888 252080309776