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30025503030 = 2354739753639
BaseRepresentation
bin11011111101101010…
…001101000100110110
32212111112021120221210
4123331222031010312
5442443012044110
621443222422250
72112026364465
oct337552150466
985445246853
1030025503030
1111808682916
12599b591986
132aa6754253
14164b9a69dc
15baaeb5520
hex6fda8d136

30025503030 has 64 divisors (see below), whose sum is σ = 73781176320. Its totient is φ = 7816558464.

The previous prime is 30025502999. The next prime is 30025503049. The reversal of 30025503030 is 3030552003.

It is a junction number, because it is equal to n+sod(n) for n = 30025502988 and 30025503006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532951 + ... + 586589.

It is an arithmetic number, because the mean of its divisors is an integer number (1152830880).

Almost surely, 230025503030 is an apocalyptic number.

30025503030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30025503030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36890588160).

30025503030 is an abundant number, since it is smaller than the sum of its proper divisors (43755673290).

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

30025503030 is a wasteful number, since it uses less digits than its factorization.

30025503030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54093.

The product of its (nonzero) digits is 1350, while the sum is 21.

The spelling of 30025503030 in words is "thirty billion, twenty-five million, five hundred three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 397 470 705 794 1191 1410 1985 2382 3970 5955 11910 18659 37318 53639 55977 93295 107278 111954 160917 186590 268195 279885 321834 536390 559770 804585 1609170 2521033 5042066 7563099 12605165 15126198 21294683 25210330 37815495 42589366 63884049 75630990 106473415 127768098 212946830 319420245 638840490 1000850101 2001700202 3002550303 5004250505 6005100606 10008501010 15012751515 30025503030