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30657188952 = 233213174740993
BaseRepresentation
bin11100100011010011…
…111001010001011000
32221010112220120010200
4130203103321101120
51000241220021302
622030025542200
72133466543425
oct344323712130
987115816120
1030657188952
11120022028a5
125b37044960
132b775952c0
1416ab83ad4c
15be669181c
hex7234f9458

30657188952 has 192 divisors, whose sum is σ = 96693367680. Its totient is φ = 8688992256.

The previous prime is 30657188951. The next prime is 30657189001. The reversal of 30657188952 is 25988175603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30657188951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 727368 + ... + 768360.

It is an arithmetic number, because the mean of its divisors is an integer number (503611290).

Almost surely, 230657188952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30657188952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48346683840).

30657188952 is an abundant number, since it is smaller than the sum of its proper divisors (66036178728).

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

30657188952 is a wasteful number, since it uses less digits than its factorization.

30657188952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41082 (or 41075 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 30657188952 in words is "thirty billion, six hundred fifty-seven million, one hundred eighty-eight thousand, nine hundred fifty-two".