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30213200000 = 275575533
BaseRepresentation
bin11100001000110110…
…001101100010000000
32212222121110120210102
4130020312031202000
5443334034400000
621514005421532
72116465651124
oct341066154200
985877416712
1030213200000
11118a4622385
125a3240a8a8
132b065c1649
1416688a5584
15bbc6de3d5
hex708d8d880

30213200000 has 96 divisors (see below), whose sum is σ = 75234130020. Its totient is φ = 12085120000.

The previous prime is 30213199987. The next prime is 30213200009. The reversal of 30213200000 is 231203.

It can be written as a sum of positive squares in 6 ways, for example, as 2131484224 + 28081715776 = 46168^2 + 167576^2 .

It is not an unprimeable number, because it can be changed into a prime (30213200009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362234 + ... + 437766.

Almost surely, 230213200000 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 30213200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37617065010).

30213200000 is an abundant number, since it is smaller than the sum of its proper divisors (45020930020).

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

30213200000 is an frugal number, since it uses more digits than its factorization.

30213200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75572 (or 75540 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 30213200000 its reverse (231203), we get a palindrome (30213431203).

The spelling of 30213200000 in words is "thirty billion, two hundred thirteen million, two hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1250 1600 2000 2500 3125 3200 4000 5000 6250 8000 10000 12500 16000 20000 25000 40000 50000 75533 80000 100000 151066 200000 302132 377665 400000 604264 755330 1208528 1510660 1888325 2417056 3021320 3776650 4834112 6042640 7553300 9441625 9668224 12085280 15106600 18883250 24170560 30213200 37766500 47208125 48341120 60426400 75533000 94416250 120852800 151066000 188832500 236040625 241705600 302132000 377665000 472081250 604264000 755330000 944162500 1208528000 1510660000 1888325000 3021320000 3776650000 6042640000 7553300000 15106600000 30213200000