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127973125 = 54729251
BaseRepresentation
bin1111010000010…
…11011100000101
322220210201010101
413220023130011
5230230120000
620410524101
73112516330
oct750133405
9286721111
10127973125
1166268115
1236a36631
1320689057
1412dd3617
15b37ce6a
hex7a0b705

127973125 has 20 divisors (see below), whose sum is σ = 182766496. Its totient is φ = 87750000.

The previous prime is 127973101. The next prime is 127973129. The reversal of 127973125 is 521379721.

It is not a de Polignac number, because 127973125 - 27 = 127972997 is a prime.

It is a super-3 number, since 3×1279731253 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127973129) 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 19 ways as a sum of consecutive naturals, for example, 10251 + ... + 19000.

Almost surely, 2127973125 is an apocalyptic number.

It is an amenable number.

127973125 is a deficient number, since it is larger than the sum of its proper divisors (54793371).

127973125 is an frugal number, since it uses more digits than its factorization.

127973125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29278 (or 29263 counting only the distinct ones).

The product of its digits is 26460, while the sum is 37.

The square root of 127973125 is about 11312.5207182131. The cubic root of 127973125 is about 503.9331462618.

The spelling of 127973125 in words is "one hundred twenty-seven million, nine hundred seventy-three thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 625 875 4375 29251 146255 204757 731275 1023785 3656375 5118925 18281875 25594625 127973125