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30421621676 = 2256364720879
BaseRepresentation
bin11100010101010001…
…010001101110101100
32220112010122111120202
4130111101101232230
5444300413343201
621550412533032
72124606342365
oct342521215654
986463574522
1030421621676
11119a12376a6
125a90181178
132b3a836c94
14168843ab6c
15bd0b5dc6b
hex715451bac

30421621676 has 24 divisors (see below), whose sum is σ = 53417387520. Its totient is φ = 15159599312.

The previous prime is 30421621663. The next prime is 30421621757. The reversal of 30421621676 is 67612612403.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 1446605 + ... + 1467483.

It is an arithmetic number, because the mean of its divisors is an integer number (2225724480).

Almost surely, 230421621676 is an apocalyptic number.

It is an amenable number.

30421621676 is a deficient number, since it is larger than the sum of its proper divisors (22995765844).

30421621676 is a wasteful number, since it uses less digits than its factorization.

30421621676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22093 (or 22091 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 30421621676 in words is "thirty billion, four hundred twenty-one million, six hundred twenty-one thousand, six hundred seventy-six".

Divisors: 1 2 4 563 647 1126 1294 2252 2588 20879 41758 83516 364261 728522 1457044 11754877 13508713 23509754 27017426 47019508 54034852 7605405419 15210810838 30421621676