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130840149 = 3117155843
BaseRepresentation
bin1111100110001…
…11011001010101
3100010012100221110
413303013121111
5231443341044
620552205233
73146060106
oct763073125
9303170843
10130840149
1167946160
1237999819
132115100b
141353c3ad
15b7476b9
hex7cc7655

130840149 has 16 divisors (see below), whose sum is σ = 192996864. Its totient is φ = 78178800.

The previous prime is 130840139. The next prime is 130840183. The reversal of 130840149 is 941048031.

It is a happy number.

It is not a de Polignac number, because 130840149 - 25 = 130840117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130840139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25579 + ... + 30264.

It is an arithmetic number, because the mean of its divisors is an integer number (12062304).

Almost surely, 2130840149 is an apocalyptic number.

It is an amenable number.

130840149 is a deficient number, since it is larger than the sum of its proper divisors (62156715).

130840149 is a wasteful number, since it uses less digits than its factorization.

130840149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55928.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 130840149 is about 11438.5378873351. The cubic root of 130840149 is about 507.6686477125.

The spelling of 130840149 in words is "one hundred thirty million, eight hundred forty thousand, one hundred forty-nine".

Divisors: 1 3 11 33 71 213 781 2343 55843 167529 614273 1842819 3964853 11894559 43613383 130840149