Search a number
-
+
30305431421610 = 23513211028974323
BaseRepresentation
bin1101110010000000010000…
…11110011000001010101010
310222022011121121210120222120
412321000020132120022222
512433011010420442420
6144242042322332110
76245331561550152
oct671001036301252
9128264547716876
1030305431421610
119724508a81844
12349548b7ba036
1313baa365c00a7
1476ab0d9b3762
153784a920cd40
hex1b90087982aa

30305431421610 has 64 divisors (see below), whose sum is σ = 72796148288640. Its totient is φ = 8074437212160.

The previous prime is 30305431421563. The next prime is 30305431421621. The reversal of 30305431421610 is 1612413450303.

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, 407715909 + ... + 407790231.

It is an arithmetic number, because the mean of its divisors is an integer number (1137439817010).

Almost surely, 230305431421610 is an apocalyptic number.

30305431421610 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30305431421610 is an abundant number, since it is smaller than the sum of its proper divisors (42490716867030).

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

30305431421610 is a wasteful number, since it uses less digits than its factorization.

30305431421610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85943.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 30305431421610 its reverse (1612413450303), we get a palindrome (31917844871913).

The spelling of 30305431421610 in words is "thirty trillion, three hundred five billion, four hundred thirty-one million, four hundred twenty-one thousand, six hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1321 2642 3963 6605 7926 10289 13210 19815 20578 30867 39630 51445 61734 74323 102890 148646 154335 222969 308670 371615 445938 743230 1114845 2229690 13591769 27183538 40775307 67958845 81550614 98180683 135917690 196361366 203876535 294542049 407753070 490903415 589084098 764709347 981806830 1472710245 1529418694 2294128041 2945420490 3823546735 4588256082 7647093470 11470640205 22941280410 1010181047387 2020362094774 3030543142161 5050905236935 6061086284322 10101810473870 15152715710805 30305431421610