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1531244105 = 51916118359
BaseRepresentation
bin101101101000100…
…1110111001001001
310221201022021000122
41123101032321021
511113444302410
6411535513025
752642234346
oct13321167111
93851267018
101531244105
117163903a6
12368988775
131b5311601
141075177cd
158e66be55
hex5b44ee49

1531244105 has 8 divisors (see below), whose sum is σ = 1934203200. Its totient is φ = 1160521776.

The previous prime is 1531244093. The next prime is 1531244137. The reversal of 1531244105 is 5014421351.

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-1531244105 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8059085 + ... + 8059274.

It is an arithmetic number, because the mean of its divisors is an integer number (241775400).

Almost surely, 21531244105 is an apocalyptic number.

It is an amenable number.

1531244105 is a deficient number, since it is larger than the sum of its proper divisors (402959095).

1531244105 is a wasteful number, since it uses less digits than its factorization.

1531244105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16118383.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1531244105 is about 39131.1142826268. The cubic root of 1531244105 is about 1152.6075939095.

Adding to 1531244105 its reverse (5014421351), we get a palindrome (6545665456).

The spelling of 1531244105 in words is "one billion, five hundred thirty-one million, two hundred forty-four thousand, one hundred five".

Divisors: 1 5 19 95 16118359 80591795 306248821 1531244105