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129114070 = 2531416497
BaseRepresentation
bin1111011001000…
…01111111010110
322222221200012121
413230201333112
5231023122240
620451210154
73125310601
oct754417726
9288850177
10129114070
1166977348
12372a695a
1320998477
141320d338
15b50604a
hex7b21fd6

129114070 has 16 divisors (see below), whose sum is σ = 239902848. Its totient is φ = 49979520.

The previous prime is 129114059. The next prime is 129114071. The reversal of 129114070 is 70411921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129114071) 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, 207939 + ... + 208558.

It is an arithmetic number, because the mean of its divisors is an integer number (14993928).

Almost surely, 2129114070 is an apocalyptic number.

129114070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129114070 is a deficient number, since it is larger than the sum of its proper divisors (110788778).

129114070 is a wasteful number, since it uses less digits than its factorization.

129114070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416535.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 129114070 is about 11362.8372337194. The cubic root of 129114070 is about 505.4263236525.

Adding to 129114070 its reverse (70411921), we get a palindrome (199525991).

The spelling of 129114070 in words is "one hundred twenty-nine million, one hundred fourteen thousand, seventy".

Divisors: 1 2 5 10 31 62 155 310 416497 832994 2082485 4164970 12911407 25822814 64557035 129114070