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5681125149 = 37270529769
BaseRepresentation
bin1010100101001111…
…10001011100011101
3112122221001001121120
411102213301130131
543113332001044
62335422121153
7260532524040
oct52247613435
915587031546
105681125149
112455935457
1211267201b9
136c6cbca1b
143bc724c57
15233b4b519
hex1529f171d

5681125149 has 8 divisors (see below), whose sum is σ = 8656952640. Its totient is φ = 3246357216.

The previous prime is 5681125147. The next prime is 5681125157. The reversal of 5681125149 is 9415211865.

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

It is not a de Polignac number, because 5681125149 - 21 = 5681125147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5681125149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681125147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135264864 + ... + 135264905.

It is an arithmetic number, because the mean of its divisors is an integer number (1082119080).

Almost surely, 25681125149 is an apocalyptic number.

It is an amenable number.

5681125149 is a deficient number, since it is larger than the sum of its proper divisors (2975827491).

5681125149 is a wasteful number, since it uses less digits than its factorization.

5681125149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270529779.

The product of its digits is 86400, while the sum is 42.

The square root of 5681125149 is about 75373.2389446016. The cubic root of 5681125149 is about 1784.3420852119.

The spelling of 5681125149 in words is "five billion, six hundred eighty-one million, one hundred twenty-five thousand, one hundred forty-nine".

Divisors: 1 3 7 21 270529769 811589307 1893708383 5681125149