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30253055028 = 2237360155417
BaseRepresentation
bin11100001011001110…
…001111110000110100
32220002101110102121120
4130023032033300310
5443424240230103
621521551543540
72120461503420
oct341316176064
986071412546
1030253055028
1111915074019
125a4382abb0
132b119371c1
14166dcbbb80
15bc0e63253
hex70b38fc34

30253055028 has 24 divisors (see below), whose sum is σ = 80674813632. Its totient is φ = 8643729984.

The previous prime is 30253054963. The next prime is 30253055029. The reversal of 30253055028 is 82055035203.

It is a super-4 number, since 4×302530550284 (a number of 43 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30253055028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30253055029) 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, 180077625 + ... + 180077792.

It is an arithmetic number, because the mean of its divisors is an integer number (3361450568).

Almost surely, 230253055028 is an apocalyptic number.

It is an amenable number.

30253055028 is an abundant number, since it is smaller than the sum of its proper divisors (50421758604).

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

30253055028 is a wasteful number, since it uses less digits than its factorization.

30253055028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360155431 (or 360155429 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 30253055028 in words is "thirty billion, two hundred fifty-three million, fifty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 360155417 720310834 1080466251 1440621668 2160932502 2521087919 4321865004 5042175838 7563263757 10084351676 15126527514 30253055028