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30344554531 = 146332073707
BaseRepresentation
bin11100010000101011…
…010010100000100011
32220022202122002100001
4130100223102200203
5444121201221111
621535021040431
72122652313004
oct342053224043
986282562301
1030344554531
1111961789a45
125a6a3b6117
132b27892815
14167c0d91ab
15bc8ed91c1
hex710ad2823

30344554531 has 4 divisors (see below), whose sum is σ = 30346642872. Its totient is φ = 30342466192.

The previous prime is 30344554501. The next prime is 30344554577. The reversal of 30344554531 is 13545544303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30344554531 - 213 = 30344546339 is a prime.

It is a super-2 number, since 2×303445545312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30344554501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022221 + ... + 1051486.

It is an arithmetic number, because the mean of its divisors is an integer number (7586660718).

Almost surely, 230344554531 is an apocalyptic number.

30344554531 is a deficient number, since it is larger than the sum of its proper divisors (2088341).

30344554531 is a wasteful number, since it uses less digits than its factorization.

30344554531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088340.

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 30344554531 in words is "thirty billion, three hundred forty-four million, five hundred fifty-four thousand, five hundred thirty-one".

Divisors: 1 14633 2073707 30344554531