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30514849225 = 5274232312
BaseRepresentation
bin11100011010110100…
…111010010111001001
32220202122001221201221
4130122310322113021
5444443300133400
622003543042041
72130120640000
oct343264722711
986678057657
1030514849225
1111a39922963
125ab7440321
132b53c49003
141696987c37
15bd8e26c1a
hex71ad3a5c9

30514849225 has 135 divisors (see below), whose sum is σ = 47681420199. Its totient is φ = 19369072800.

The previous prime is 30514849223. The next prime is 30514849273. The reversal of 30514849225 is 52294841503.

The square root of 30514849225 is 174685.

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., 10985345721 + 19529503504 = 104811^2 + 139748^2 .

It is not a de Polignac number, because 30514849225 - 21 = 30514849223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30514849223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 984349960 + ... + 984349990.

Almost surely, 230514849225 is an apocalyptic number.

30514849225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30514849225 is the 174685-th square number.

30514849225 is the 87343-rd centered octagonal number.

It is an amenable number.

30514849225 is a deficient number, since it is larger than the sum of its proper divisors (17166570974).

30514849225 is an frugal number, since it uses more digits than its factorization.

30514849225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 30514849225 in words is "thirty billion, five hundred fourteen million, eight hundred forty-nine thousand, two hundred twenty-five".

Divisors: 1 5 7 23 25 31 35 49 115 155 161 175 217 245 343 529 575 713 775 805 961 1085 1127 1225 1519 1715 2401 2645 3565 3703 4025 4805 4991 5425 5635 6727 7595 7889 8575 10633 12005 13225 16399 17825 18515 22103 24025 24955 25921 28175 33635 34937 37975 39445 47089 53165 55223 60025 74431 81995 92575 110515 114793 124775 129605 154721 168175 174685 181447 197225 235445 244559 265825 276115 329623 372155 409975 508369 552575 573965 648025 773605 803551 873425 907235 1083047 1177225 1222795 1270129 1380575 1648115 1711913 1860775 2307361 2541845 2869825 3558583 3868025 4017755 4536175 5415235 5624857 6113975 6350645 7581329 8240575 8559565 11536805 12709225 17792915 20088775 24910081 27076175 28124285 31753225 37906645 39373999 42797825 53069303 57684025 88964575 124550405 140621425 174370567 189533225 196869995 265346515 622752025 871852835 984349975 1220593969 1326732575 4359264175 6102969845 30514849225