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127051146 = 2332981131
BaseRepresentation
bin1111001001010…
…10010110001010
322212001212102000
413210222112022
5230011114041
620335051430
73101626335
oct744522612
9285055360
10127051146
1165798452
1236670b76
13204254c1
1412c3361c
15b249bb6
hex792a58a

127051146 has 32 divisors (see below), whose sum is σ = 292075200. Its totient is φ = 40889520.

The previous prime is 127051091. The next prime is 127051147. The reversal of 127051146 is 641150721.

It is a happy number.

It is a super-2 number, since 2×1270511462 = 32283987399826632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (127051147) 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, 39000 + ... + 42131.

It is an arithmetic number, because the mean of its divisors is an integer number (9127350).

Almost surely, 2127051146 is an apocalyptic number.

127051146 is an abundant number, since it is smaller than the sum of its proper divisors (165024054).

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

127051146 is a wasteful number, since it uses less digits than its factorization.

127051146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81171 (or 81165 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 127051146 is about 11271.6966779629. The cubic root of 127051146 is about 502.7200372949.

The spelling of 127051146 in words is "one hundred twenty-seven million, fifty-one thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 27 29 54 58 87 174 261 522 783 1566 81131 162262 243393 486786 730179 1460358 2190537 2352799 4381074 4705598 7058397 14116794 21175191 42350382 63525573 127051146