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30420213230 = 251129101263359
BaseRepresentation
bin11100010101001011…
…111001110111101110
32220112000222221120002
4130111023321313232
5444300033310410
621550322424302
72124561355211
oct342513716756
986460887502
1030420213230
11119a04654a0
125a8b802092
132b3a462b94
141688191778
15bd09817a5
hex7152f9dee

30420213230 has 128 divisors (see below), whose sum is σ = 62817638400. Its totient is φ = 10505152000.

The previous prime is 30420213227. The next prime is 30420213233. The reversal of 30420213230 is 3231202403.

It is an interprime number because it is at equal distance from previous prime (30420213227) and next prime (30420213233).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420213233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84735791 + ... + 84736149.

It is an arithmetic number, because the mean of its divisors is an integer number (490762800).

Almost surely, 230420213230 is an apocalyptic number.

30420213230 is an abundant number, since it is smaller than the sum of its proper divisors (32397425170).

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

30420213230 is a wasteful number, since it uses less digits than its factorization.

30420213230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30420213230 its reverse (3231202403), we get a palindrome (33651415633).

The spelling of 30420213230 in words is "thirty billion, four hundred twenty million, two hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 29 55 58 101 110 145 202 263 290 319 359 505 526 638 718 1010 1111 1315 1595 1795 2222 2630 2893 2929 3190 3590 3949 5555 5786 5858 7627 7898 10411 11110 14465 14645 15254 19745 20822 26563 28930 29290 32219 36259 38135 39490 52055 53126 64438 72518 76270 83897 94417 104110 114521 132815 161095 167794 181295 188834 229042 265630 292193 322190 362590 398849 419485 472085 572605 584386 770327 797698 838970 944170 1038587 1051511 1145210 1460965 1540654 1994245 2077174 2103022 2738093 2921930 3851635 3988490 5192935 5257555 5476186 7703270 8473597 9536117 10385870 10515110 11566621 13690465 16947194 19072234 23133242 27380930 30119023 42367985 47680585 57833105 60238046 84735970 95361170 104897287 115666210 150595115 209794574 276547393 301190230 524486435 553094786 1048972870 1382736965 2765473930 3042021323 6084042646 15210106615 30420213230