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30420332000 = 255347915877
BaseRepresentation
bin11100010101001100…
…010110110111100000
32220112001012222110222
4130111030112313200
5444300101111000
621550325142212
72124562361402
oct342514266740
986461188428
1030420332000
11119a0536753
125a8b85a968
132b3a4a4c66
1416881c2b72
15bd09a6a85
hex715316de0

30420332000 has 96 divisors (see below), whose sum is σ = 74903512320. Its totient is φ = 12141964800.

The previous prime is 30420331979. The next prime is 30420332011. The reversal of 30420332000 is 23302403.

It is a self number, because there is not a number n which added to its sum of digits gives 30420332000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1908062 + ... + 1923938.

It is an arithmetic number, because the mean of its divisors is an integer number (780244920).

Almost surely, 230420332000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30420332000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37451756160).

30420332000 is an abundant number, since it is smaller than the sum of its proper divisors (44483180320).

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

30420332000 is a wasteful number, since it uses less digits than its factorization.

30420332000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16381 (or 16363 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 30420332000 its reverse (23302403), we get a palindrome (30443634403).

The spelling of 30420332000 in words is "thirty billion, four hundred twenty million, three hundred thirty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 479 500 800 958 1000 1916 2000 2395 3832 4000 4790 7664 9580 11975 15328 15877 19160 23950 31754 38320 47900 59875 63508 76640 79385 95800 119750 127016 158770 191600 239500 254032 317540 383200 396925 479000 508064 635080 793850 958000 1270160 1587700 1916000 1984625 2540320 3175400 3969250 6350800 7605083 7938500 12701600 15210166 15877000 30420332 31754000 38025415 60840664 63508000 76050830 121681328 152101660 190127075 243362656 304203320 380254150 608406640 760508300 950635375 1216813280 1521016600 1901270750 3042033200 3802541500 6084066400 7605083000 15210166000 30420332000