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30938614400 = 275261353449
BaseRepresentation
bin11100110100000101…
…011100101010000000
32221212011110110021102
4130310011130222000
51001330241130100
622114001513532
72143454611661
oct346405345200
987764413242
1030938614400
111213704aa11
125bb53428a8
132bc098b735
1416d6d77368
15c11231cd5
hex73415ca80

30938614400 has 192 divisors, whose sum is σ = 78074523000. Its totient is φ = 12111052800.

The previous prime is 30938614397. The next prime is 30938614411. The reversal of 30938614400 is 441683903.

It can be written as a sum of positive squares in 12 ways, for example, as 55472704 + 30883141696 = 7448^2 + 175736^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68905376 + ... + 68905824.

Almost surely, 230938614400 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 30938614400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39037261500).

30938614400 is an abundant number, since it is smaller than the sum of its proper divisors (47135908600).

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

30938614400 is a wasteful number, since it uses less digits than its factorization.

30938614400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 30938614400 in words is "thirty billion, nine hundred thirty-eight million, six hundred fourteen thousand, four hundred".