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127024139 = 11191494079
BaseRepresentation
bin1111001001000…
…11110000001011
322212000111100202
413210203300023
5230004233024
620334322415
73101454524
oct744436013
9285014322
10127024139
116577a130
123665940b
1320416118
1412c2784b
15b241bae
hex7923c0b

127024139 has 16 divisors (see below), whose sum is σ = 146880000. Its totient is φ = 108637920.

The previous prime is 127024103. The next prime is 127024141. The reversal of 127024139 is 931420721.

It is a cyclic number.

It is not a de Polignac number, because 127024139 - 224 = 110246923 is a prime.

It is a super-2 number, since 2×1270241392 = 32270263777382642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127024159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29102 + ... + 33180.

It is an arithmetic number, because the mean of its divisors is an integer number (9180000).

Almost surely, 2127024139 is an apocalyptic number.

127024139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

127024139 is a deficient number, since it is larger than the sum of its proper divisors (19855861).

127024139 is a wasteful number, since it uses less digits than its factorization.

127024139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 127024139 is about 11270.4986136373. The cubic root of 127024139 is about 502.6844140503.

The spelling of 127024139 in words is "one hundred twenty-seven million, twenty-four thousand, one hundred thirty-nine".

Divisors: 1 11 19 149 209 1639 2831 4079 31141 44869 77501 607771 852511 6685481 11547649 127024139