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30033043421 = 1730720532803
BaseRepresentation
bin11011111110000110…
…111101111111011101
32212112001110200102112
4123332012331333131
5443001424342141
621444052203405
72112150441233
oct337606757735
985461420375
1030033043421
1111811963047
1259a2009565
132aa8194414
14164c9aa953
15bab9a47eb
hex6fe1bdfdd

30033043421 has 16 divisors (see below), whose sum is σ = 31930202304. Its totient is φ = 28150550784.

The previous prime is 30033043399. The next prime is 30033043427. The reversal of 30033043421 is 12434033003.

It is not a de Polignac number, because 30033043421 - 26 = 30033043357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30033043427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10713206 + ... + 10716008.

It is an arithmetic number, because the mean of its divisors is an integer number (1995637644).

Almost surely, 230033043421 is an apocalyptic number.

It is an amenable number.

30033043421 is a deficient number, since it is larger than the sum of its proper divisors (1897158883).

30033043421 is a wasteful number, since it uses less digits than its factorization.

30033043421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30033043421 its reverse (12434033003), we get a palindrome (42467076424).

The spelling of 30033043421 in words is "thirty billion, thirty-three million, forty-three thousand, four hundred twenty-one".

Divisors: 1 17 307 2053 2803 5219 34901 47651 630271 860521 5754559 10714607 14628857 97827503 1766649613 30033043421