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125672249 = 1071174507
BaseRepresentation
bin1110111110110…
…01101100111001
322202110210220202
413133121230321
5224133002444
620245331545
73054124253
oct737315471
9282423822
10125672249
1164a3646a
1236106bb5
13200619a1
1412994cd3
15b07634e
hex77d9b39

125672249 has 4 divisors (see below), whose sum is σ = 126846864. Its totient is φ = 124497636.

The previous prime is 125672237. The next prime is 125672269. The reversal of 125672249 is 942276521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942276521 = 3725466933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-125672249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125672269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587147 + ... + 587360.

It is an arithmetic number, because the mean of its divisors is an integer number (31711716).

Almost surely, 2125672249 is an apocalyptic number.

It is an amenable number.

125672249 is a deficient number, since it is larger than the sum of its proper divisors (1174615).

125672249 is a wasteful number, since it uses less digits than its factorization.

125672249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174614.

The product of its digits is 60480, while the sum is 38.

The square root of 125672249 is about 11210.3634642236. The cubic root of 125672249 is about 500.8947299616.

The spelling of 125672249 in words is "one hundred twenty-five million, six hundred seventy-two thousand, two hundred forty-nine".

Divisors: 1 107 1174507 125672249