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30083722128769 = 172192169812
BaseRepresentation
bin1101101011100011010011…
…00100100010110110000001
310221111222100022122120021011
412311301221210202312001
512420342430331110034
6143552134323000521
76223322451631201
oct665615144426601
9127458308576234
1030083722128769
119649486951611
12345a515809141
1313a2b6274500a
147600ba5c6401
1537282ee30864
hex1b5c69922d81

30083722128769 has 27 divisors (see below), whose sum is σ = 33729930876681. Its totient is φ = 26822296437120.

The previous prime is 30083722128721. The next prime is 30083722128833. The reversal of 30083722128769 is 96782122738003.

The square root of 30083722128769 is 5484863.

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

It can be written as a sum of positive squares in 4 ways, for example, as 19693491930225 + 10390230198544 = 4437735^2 + 3223388^2 .

It is a de Polignac number, because none of the positive numbers 2k-30083722128769 is a prime.

It is a super-2 number, since 2×300837221287692 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30083722128469) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1771602259 + ... + 1771619239.

Almost surely, 230083722128769 is an apocalyptic number.

30083722128769 is the 5484863-rd square number.

30083722128769 is the 2742432-nd centered octagonal number.

It is an amenable number.

30083722128769 is a deficient number, since it is larger than the sum of its proper divisors (3646208747912).

30083722128769 is an frugal number, since it uses more digits than its factorization.

30083722128769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34034 (or 17017 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 30083722128769 in words is "thirty trillion, eighty-three billion, seven hundred twenty-two million, one hundred twenty-eight thousand, seven hundred sixty-nine".

Divisors: 1 17 19 289 323 361 5491 6137 16981 104329 288677 322639 4907509 5484863 6130141 93242671 104212397 288354361 1771610749 4902024137 5478732859 83334410329 93138458603 104095924321 1583353796251 1769630713457 30083722128769