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19552149241 = 67220872
BaseRepresentation
bin10010001101011001…
…100001111011111001
31212110121211002111121
4102031121201323321
5310020322233431
612552050225241
71261343345362
oct221531417371
955417732447
1019552149241
118323751129
123957b85221
131ac79812a1
14d36a26b69
157967a4611
hex48d661ef9

19552149241 has 9 divisors (see below), whose sum is σ = 19857842949. Its totient is φ = 19251097404.

The previous prime is 19552149209. The next prime is 19552149271. The reversal of 19552149241 is 14294125591.

The square root of 19552149241 is 139829.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 19552149241 - 25 = 19552149209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19552149271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9367500 + ... + 9369586.

Almost surely, 219552149241 is an apocalyptic number.

19552149241 is the 139829-th square number.

19552149241 is the 69915-th centered octagonal number.

It is an amenable number.

19552149241 is a deficient number, since it is larger than the sum of its proper divisors (305693708).

19552149241 is an frugal number, since it uses more digits than its factorization.

19552149241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308 (or 2154 counting only the distinct ones).

The product of its digits is 129600, while the sum is 43.

The spelling of 19552149241 in words is "nineteen billion, five hundred fifty-two million, one hundred forty-nine thousand, two hundred forty-one".

Divisors: 1 67 2087 4489 139829 4355569 9368543 291823123 19552149241