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30530400124 = 2273671297023
BaseRepresentation
bin11100011011110000…
…001110111101111100
32220210201100000120011
4130123300032331330
51000011240300444
622005300233004
72130400055620
oct343360167574
986721300504
1030530400124
1111a47684544
125b0069b764
132b57232323
141698a75180
15bda499734
hex71bc0ef7c

30530400124 has 24 divisors (see below), whose sum is σ = 61077639168. Its totient is φ = 13080848880.

The previous prime is 30530400101. The next prime is 30530400133. The reversal of 30530400124 is 42100403503.

It is a junction number, because it is equal to n+sod(n) for n = 30530400095 and 30530400104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45724 + ... + 251299.

It is an arithmetic number, because the mean of its divisors is an integer number (2544901632).

Almost surely, 230530400124 is an apocalyptic number.

It is an amenable number.

30530400124 is an abundant number, since it is smaller than the sum of its proper divisors (30547239044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30530400124 is a wasteful number, since it uses less digits than its factorization.

30530400124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300705 (or 300703 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 30530400124 its reverse (42100403503), we get a palindrome (72630803627).

The spelling of 30530400124 in words is "thirty billion, five hundred thirty million, four hundred thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 3671 7342 14684 25697 51394 102788 297023 594046 1188092 2079161 4158322 8316644 1090371433 2180742866 4361485732 7632600031 15265200062 30530400124