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30692464128 = 293229312239
BaseRepresentation
bin11100100101011010…
…011101011000000000
32221020000021201120200
4130211122131120000
51000324232323003
622033330005200
72134405432464
oct344532353000
987200251520
1030692464128
1112020106637
125b46a16800
132b819963a1
1416b23c04a4
15be980d6a3
hex72569d600

30692464128 has 360 divisors, whose sum is σ = 95082530400. Its totient is φ = 9519390720.

The previous prime is 30692464123. The next prime is 30692464181. The reversal of 30692464128 is 82146429603.

30692464128 is a `hidden beast` number, since 3 + 0 + 69 + 2 + 464 + 128 = 666.

It is a super-3 number, since 3×306924641283 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30692464123) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128420233 + ... + 128420471.

It is an arithmetic number, because the mean of its divisors is an integer number (264118140).

Almost surely, 230692464128 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 30692464128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47541265200).

30692464128 is an abundant number, since it is smaller than the sum of its proper divisors (64390066272).

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

30692464128 is a wasteful number, since it uses less digits than its factorization.

30692464128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 30692464128 in words is "thirty billion, six hundred ninety-two million, four hundred sixty-four thousand, one hundred twenty-eight".