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30124240340 = 2252365487479
BaseRepresentation
bin11100000011100010…
…110110110111010100
32212202102001222002012
4130003202312313110
5443143301142330
621501111003352
72114335550405
oct340342666724
985672058065
1030124240340
11118593916a7
125a08669558
132ac10450ac
14165ab499ac
15bb49bac95
hex7038b6dd4

30124240340 has 24 divisors (see below), whose sum is σ = 66011379840. Its totient is φ = 11525796128.

The previous prime is 30124240339. The next prime is 30124240369. The reversal of 30124240340 is 4304242103.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 32743280 + ... + 32744199.

It is an arithmetic number, because the mean of its divisors is an integer number (2750474160).

Almost surely, 230124240340 is an apocalyptic number.

It is an amenable number.

30124240340 is an abundant number, since it is smaller than the sum of its proper divisors (35887139500).

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

30124240340 is a wasteful number, since it uses less digits than its factorization.

30124240340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65487511 (or 65487509 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30124240340 its reverse (4304242103), we get a palindrome (34428482443).

The spelling of 30124240340 in words is "thirty billion, one hundred twenty-four million, two hundred forty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 65487479 130974958 261949916 327437395 654874790 1309749580 1506212017 3012424034 6024848068 7531060085 15062120170 30124240340