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30421460494 = 257165940423
BaseRepresentation
bin11100010101010000…
…101010011000001110
32220112010100022111001
4130111100222120032
5444300343213434
621550405250514
72124605101435
oct342520523016
986463308431
1030421460494
11119a1137597
125a90103a3a
132b3a7ab7c9
1416883d811c
15bd0b2b114
hex71542a60e

30421460494 has 16 divisors (see below), whose sum is σ = 45782605440. Its totient is φ = 15160675320.

The previous prime is 30421460453. The next prime is 30421460497. The reversal of 30421460494 is 49406412403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30421460497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732367 + ... + 772789.

It is an arithmetic number, because the mean of its divisors is an integer number (2861412840).

Almost surely, 230421460494 is an apocalyptic number.

30421460494 is a deficient number, since it is larger than the sum of its proper divisors (15361144946).

30421460494 is a wasteful number, since it uses less digits than its factorization.

30421460494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41655.

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 30421460494 its reverse (49406412403), we get a palindrome (79827872897).

The spelling of 30421460494 in words is "thirty billion, four hundred twenty-one million, four hundred sixty thousand, four hundred ninety-four".

Divisors: 1 2 571 659 1142 1318 40423 80846 376289 752578 23081533 26638757 46163066 53277514 15210730247 30421460494