Search a number
-
+
30501223202425 = 5229971133838213
BaseRepresentation
bin1101110111101100111101…
…00100101111111001111001
310222222212222200120121000011
412323312132210233321321
512444213001114434200
6144512022443541521
76265432513331443
oct673663644577171
9128885880517004
1030501223202425
11979a550372648
123507411b2a8a1
131403339b16431
147763a4c1d493
1537d617ecc5ba
hex1bbd9e92fe79

30501223202425 has 48 divisors (see below), whose sum is σ = 39878889931440. Its totient is φ = 23110335037440.

The previous prime is 30501223202419. The next prime is 30501223202447. The reversal of 30501223202425 is 52420232210503.

It can be written as a sum of positive squares in 24 ways, for example, as 22175990121321 + 8325233081104 = 4709139^2 + 2885348^2 .

It is not a de Polignac number, because 30501223202425 - 29 = 30501223201913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6027619 + ... + 9865831.

It is an arithmetic number, because the mean of its divisors is an integer number (830810206905).

Almost surely, 230501223202425 is an apocalyptic number.

It is an amenable number.

30501223202425 is a deficient number, since it is larger than the sum of its proper divisors (9377666729015).

30501223202425 is a wasteful number, since it uses less digits than its factorization.

30501223202425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838462 (or 3838457 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 30501223202425 its reverse (52420232210503), we get a palindrome (82921455412928).

The spelling of 30501223202425 in words is "thirty trillion, five hundred one billion, two hundred twenty-three million, two hundred two thousand, four hundred twenty-five".

Divisors: 1 5 25 29 97 113 145 485 565 725 2425 2813 2825 3277 10961 14065 16385 54805 70325 81925 274025 317869 1589345 3838213 7946725 19191065 95955325 111308177 372306661 433718069 556540885 1861533305 2168590345 2782704425 9307666525 10796893169 10842951725 12577824001 42070652693 53984465845 62889120005 210353263465 269922329225 314445600025 1051766317325 1220048928097 6100244640485 30501223202425