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127144330 = 2531410143
BaseRepresentation
bin1111001010000…
…01000110001010
322212020121020021
413211001012022
5230022104310
620341051054
73102465115
oct745010612
9285217207
10127144330
1165851465
12366b6a8a
1320458a41
1412c5957c
15b2675da
hex794118a

127144330 has 16 divisors (see below), whose sum is σ = 236242944. Its totient is φ = 49217040.

The previous prime is 127144291. The next prime is 127144337. The reversal of 127144330 is 33441721.

It is a super-2 number, since 2×1271443302 = 32331361302297800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127144295 and 127144304.

It is not an unprimeable number, because it can be changed into a prime (127144337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204762 + ... + 205381.

It is an arithmetic number, because the mean of its divisors is an integer number (14765184).

Almost surely, 2127144330 is an apocalyptic number.

127144330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127144330 is a deficient number, since it is larger than the sum of its proper divisors (109098614).

127144330 is a wasteful number, since it uses less digits than its factorization.

127144330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410181.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 127144330 is about 11275.8294595121. The cubic root of 127144330 is about 502.8429117366.

The spelling of 127144330 in words is "one hundred twenty-seven million, one hundred forty-four thousand, three hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 410143 820286 2050715 4101430 12714433 25428866 63572165 127144330