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30800649552 = 243641680199
BaseRepresentation
bin11100101011110111…
…001001110101010000
32221111112212010002020
4130223313021311100
51001034431241202
622052152451440
72140161126051
oct345367116520
987445763066
1030800649552
1112076188982
125b770a9b80
132b9b21482a
1416c2902728
15c0407d5bc
hex72bdc9d50

30800649552 has 20 divisors (see below), whose sum is σ = 79568344800. Its totient is φ = 10266883168.

The previous prime is 30800649533. The next prime is 30800649553. The reversal of 30800649552 is 25594600803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30800649553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320840052 + ... + 320840147.

It is an arithmetic number, because the mean of its divisors is an integer number (3978417240).

Almost surely, 230800649552 is an apocalyptic number.

It is an amenable number.

30800649552 is an abundant number, since it is smaller than the sum of its proper divisors (48767695248).

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

30800649552 is a wasteful number, since it uses less digits than its factorization.

30800649552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641680210 (or 641680204 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 30800649552 in words is "thirty billion, eight hundred million, six hundred forty-nine thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 641680199 1283360398 1925040597 2566720796 3850081194 5133441592 7700162388 10266883184 15400324776 30800649552