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30202100331 = 31323311086133
BaseRepresentation
bin11100001000001011…
…110111101001101011
32212221211120122220120
4130020023313221223
5443323214202311
621512531454323
72116302421434
oct341013675153
985854518816
1030202100331
1111899330aa7
125a2a7573a3
132b042063b0
14166721648b
15bbb74a706
hex7082f7a6b

30202100331 has 32 divisors (see below), whose sum is σ = 46712451072. Its totient is φ = 17204330880.

The previous prime is 30202100309. The next prime is 30202100359. The reversal of 30202100331 is 13300120203.

It is not a de Polignac number, because 30202100331 - 213 = 30202092139 is a prime.

It is a super-2 number, since 2×302021003312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30202100331.

It is not an unprimeable number, because it can be changed into a prime (30202100381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515260 + ... + 570873.

It is an arithmetic number, because the mean of its divisors is an integer number (1459764096).

Almost surely, 230202100331 is an apocalyptic number.

30202100331 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30202100331 is a deficient number, since it is larger than the sum of its proper divisors (16510350741).

30202100331 is a wasteful number, since it uses less digits than its factorization.

30202100331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086203.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30202100331 its reverse (13300120203), we get a palindrome (43502220534).

The spelling of 30202100331 in words is "thirty billion, two hundred two million, one hundred thousand, three hundred thirty-one".

Divisors: 1 3 13 23 31 39 69 93 299 403 713 897 1209 2139 9269 27807 1086133 3258399 14119729 24981059 33670123 42359187 74943177 101010369 324753767 437711599 774412829 974261301 1313134797 2323238487 10067366777 30202100331