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127140132 = 22371513573
BaseRepresentation
bin1111001010000…
…00000100100100
322212020101110210
413211000010210
5230021441012
620341015420
73102446640
oct745000444
9285211423
10127140132
1165849299
12366b4570
1320456b62
1412c57c20
15b26623c
hex7940124

127140132 has 24 divisors (see below), whose sum is σ = 339040576. Its totient is φ = 36325728.

The previous prime is 127140053. The next prime is 127140137. The reversal of 127140132 is 231041721.

It is a super-2 number, since 2×1271401322 = 32329226329954848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 127140099 and 127140108.

It is not an unprimeable number, because it can be changed into a prime (127140137) 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, 756703 + ... + 756870.

Almost surely, 2127140132 is an apocalyptic number.

127140132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127140132 is an abundant number, since it is smaller than the sum of its proper divisors (211900444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127140132 is a wasteful number, since it uses less digits than its factorization.

127140132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513587 (or 1513585 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 127140132 is about 11275.6433075900. The cubic root of 127140132 is about 502.8373774545.

Adding to 127140132 its reverse (231041721), we get a palindrome (358181853).

The spelling of 127140132 in words is "one hundred twenty-seven million, one hundred forty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1513573 3027146 4540719 6054292 9081438 10595011 18162876 21190022 31785033 42380044 63570066 127140132