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3898488342681 = 326581532
BaseRepresentation
bin111000101110110000000…
…000110100100010011001
3111210200200100121012200100
4320232300000310202121
51002333101003431211
612142535114530013
7551441114105322
oct70566000644231
914720610535610
103898488342681
111273381043aa9
1252b677a36909
1322381a074a0a
14d698b623449
156b61e1c2156
hex38bb0034899

3898488342681 has 9 divisors (see below), whose sum is σ = 5631158384319. Its totient is φ = 2598988279536.

The previous prime is 3898488342667. The next prime is 3898488342733. The reversal of 3898488342681 is 1862438848983.

The square root of 3898488342681 is 1974459.

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

3898488342681 is a `hidden beast` number, since 3 + 8 + 9 + 8 + 48 + 83 + 426 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1350046467225 + 2548441875456 = 1161915^2 + 1596384^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 3898488342681 - 25 = 3898488342649 is a prime.

It is a super-2 number, since 2×38984883426812 (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3898488347681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5594301 + ... + 6252453.

Almost surely, 23898488342681 is an apocalyptic number.

3898488342681 is the 1974459-th square number.

3898488342681 is the 987230-th centered octagonal number.

It is an amenable number.

3898488342681 is a deficient number, since it is larger than the sum of its proper divisors (1732670041638).

3898488342681 is an frugal number, since it uses more digits than its factorization.

3898488342681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316312 (or 658156 counting only the distinct ones).

The product of its digits is 509607936, while the sum is 72.

The spelling of 3898488342681 in words is "three trillion, eight hundred ninety-eight billion, four hundred eighty-eight million, three hundred forty-two thousand, six hundred eighty-one".

Divisors: 1 3 9 658153 1974459 5923377 433165371409 1299496114227 3898488342681