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29090906549 = 171799559943
BaseRepresentation
bin11011000101111101…
…000000000110110101
32210002101200011121022
4123011331000012311
5434034233002144
621210355030525
72046620424425
oct330575000665
983071604538
1029090906549
1111379070731
12577a59b445
132987c36693
14159d802485
15b53e02cee
hex6c5f401b5

29090906549 has 8 divisors (see below), whose sum is σ = 30974218560. Its totient is φ = 27226714816.

The previous prime is 29090906519. The next prime is 29090906627. The reversal of 29090906549 is 94560909092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29090906549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29090906549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29090906519) 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 7 ways as a sum of consecutive naturals, for example, 4776929 + ... + 4783014.

It is an arithmetic number, because the mean of its divisors is an integer number (3871777320).

Almost surely, 229090906549 is an apocalyptic number.

It is an amenable number.

29090906549 is a deficient number, since it is larger than the sum of its proper divisors (1883312011).

29090906549 is a wasteful number, since it uses less digits than its factorization.

29090906549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9560139.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The spelling of 29090906549 in words is "twenty-nine billion, ninety million, nine hundred six thousand, five hundred forty-nine".

Divisors: 1 17 179 3043 9559943 162519031 1711229797 29090906549