Search a number
-
+
30120000103100 = 22521933967393401
BaseRepresentation
bin1101101100100110110111…
…11010000010001010111100
310221122102222121001121102002
412312103123322002022330
512421441230011244400
6144020534221521432
76226045452421205
oct666233372021274
9127572877047362
1030120000103100
119662902916686
12346555b113278
1313a63c466150b
14761b5c71c5ac
15373754c9eed5
hex1b64dbe822bc

30120000103100 has 72 divisors (see below), whose sum is σ = 65715783587328. Its totient is φ = 11982523392000.

The previous prime is 30120000103097. The next prime is 30120000103153. The reversal of 30120000103100 is 130100002103.

It is a super-2 number, since 2×301200001031002 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76366400 + ... + 76759800.

Almost surely, 230120000103100 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 30120000103100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32857891793664).

30120000103100 is an abundant number, since it is smaller than the sum of its proper divisors (35595783484228).

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

30120000103100 is a wasteful number, since it uses less digits than its factorization.

30120000103100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397575 (or 397568 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 30120000103100 its reverse (130100002103), we get a palindrome (30250100105203).

The spelling of 30120000103100 in words is "thirty trillion, one hundred twenty billion, one hundred three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 193 386 772 965 1930 3860 3967 4825 7934 9650 15868 19300 19835 39670 79340 99175 198350 393401 396700 765631 786802 1531262 1573604 1967005 3062524 3828155 3934010 7656310 7868020 9835025 15312620 19140775 19670050 38281550 39340100 75926393 76563100 151852786 303705572 379631965 759263930 1518527860 1560621767 1898159825 3121243534 3796319650 6242487068 7592639300 7803108835 15606217670 31212435340 39015544175 78031088350 156062176700 301200001031 602400002062 1204800004124 1506000005155 3012000010310 6024000020620 7530000025775 15060000051550 30120000103100