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125507207 = 7137130873
BaseRepresentation
bin1110111101100…
…01011010000111
322202011102112002
413132301122013
5224112212312
620242015515
73052536140
oct736613207
9282142462
10125507207
1164933471
123604759b
1320004827
1412950ac7
15b0424c2
hex77b1687

125507207 has 8 divisors (see below), whose sum is σ = 144484896. Its totient is φ = 106791552.

The previous prime is 125507203. The next prime is 125507227. The reversal of 125507207 is 702705521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125507207 - 22 = 125507203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125507207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125507203) 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, 64478 + ... + 66395.

It is an arithmetic number, because the mean of its divisors is an integer number (18060612).

Almost surely, 2125507207 is an apocalyptic number.

125507207 is a deficient number, since it is larger than the sum of its proper divisors (18977689).

125507207 is a wasteful number, since it uses less digits than its factorization.

125507207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131017.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 125507207 is about 11202.9999107382. Note that the first 4 decimals coincide. The cubic root of 125507207 is about 500.6753633579.

The spelling of 125507207 in words is "one hundred twenty-five million, five hundred seven thousand, two hundred seven".

Divisors: 1 7 137 959 130873 916111 17929601 125507207