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127142810 = 25110311527
BaseRepresentation
bin1111001010000…
…00101110011010
322212020112010222
413211000232122
5230022032220
620341040042
73102460514
oct745005632
9285215128
10127142810
1165850303
12366b6022
1320458142
1412c58bb4
15b266e25
hex7940b9a

127142810 has 16 divisors (see below), whose sum is σ = 229084416. Its totient is φ = 50806608.

The previous prime is 127142797. The next prime is 127142863. The reversal of 127142810 is 18241721.

It is a super-2 number, since 2×1271428102 = 32330588269392200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 127142810.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5267 + ... + 16793.

It is an arithmetic number, because the mean of its divisors is an integer number (14317776).

Almost surely, 2127142810 is an apocalyptic number.

127142810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127142810 is a deficient number, since it is larger than the sum of its proper divisors (101941606).

127142810 is a wasteful number, since it uses less digits than its factorization.

127142810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12637.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 127142810 is about 11275.7620585041. The cubic root of 127142810 is about 502.8409079134.

The spelling of 127142810 in words is "one hundred twenty-seven million, one hundred forty-two thousand, eight hundred ten".

Divisors: 1 2 5 10 1103 2206 5515 11030 11527 23054 57635 115270 12714281 25428562 63571405 127142810