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29131742592 = 27322329311223
BaseRepresentation
bin11011001000011000…
…110001110110000000
32210012020111212010100
4123020120301312000
5434130211230332
621214414202400
72050624504101
oct331030616600
983166455110
1029131742592
111139a122427
1257901b3400
132993533914
1415a4dd23a8
15b577bc67c
hex6c8631d80

29131742592 has 384 divisors, whose sum is σ = 93486182400. Its totient is φ = 8671703040.

The previous prime is 29131742579. The next prime is 29131742593. The reversal of 29131742592 is 29524713192.

29131742592 is a `hidden beast` number, since 2 + 9 + 1 + 3 + 17 + 42 + 592 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29131742593) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23819293 + ... + 23820515.

It is an arithmetic number, because the mean of its divisors is an integer number (243453600).

Almost surely, 229131742592 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 29131742592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46743091200).

29131742592 is an abundant number, since it is smaller than the sum of its proper divisors (64354439808).

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

29131742592 is a wasteful number, since it uses less digits than its factorization.

29131742592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1311 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 29131742592 in words is "twenty-nine billion, one hundred thirty-one million, seven hundred forty-two thousand, five hundred ninety-two".