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545071952 = 241710119841
BaseRepresentation
bin100000011111010…
…010001101010000
31101222122112011002
4200133102031100
52104014300302
6130030441132
716336015025
oct4037221520
91358575132
10545071952
1125a751697
121326631a8
1388c063a9
145256954c
1532cbcc02
hex207d2350

545071952 has 40 divisors (see below), whose sum is σ = 1129327272. Its totient is φ = 253952000.

The previous prime is 545071927. The next prime is 545071957. The reversal of 545071952 is 259170545.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118897216 + 426174736 = 10904^2 + 20644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545071957) 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, 17552 + ... + 37392.

Almost surely, 2545071952 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 545071952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564663636).

545071952 is an abundant number, since it is smaller than the sum of its proper divisors (584255320).

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

545071952 is a wasteful number, since it uses less digits than its factorization.

545071952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19967 (or 19961 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 545071952 is about 23346.7760515237. The cubic root of 545071952 is about 816.8668620040.

The spelling of 545071952 in words is "five hundred forty-five million, seventy-one thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 17 34 68 101 136 202 272 404 808 1616 1717 3434 6868 13736 19841 27472 39682 79364 158728 317456 337297 674594 1349188 2003941 2698376 4007882 5396752 8015764 16031528 32063056 34066997 68133994 136267988 272535976 545071952