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6750157 = 31217747
BaseRepresentation
bin11001101111111111001101
3110200221110211
4121233333031
53212001112
6400402421
7111242521
oct31577715
913627424
106750157
1138a0547
122316411
13152459b
14c79d81
158d50a7
hex66ffcd

6750157 has 4 divisors (see below), whose sum is σ = 6967936. Its totient is φ = 6532380.

The previous prime is 6750113. The next prime is 6750167. The reversal of 6750157 is 7510576.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6750157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 217747 = 6750157 / (6 + 7 + 5 + 0 + 1 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6750167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108843 + ... + 108904.

It is an arithmetic number, because the mean of its divisors is an integer number (1741984).

Almost surely, 26750157 is an apocalyptic number.

It is an amenable number.

6750157 is a deficient number, since it is larger than the sum of its proper divisors (217779).

6750157 is a wasteful number, since it uses less digits than its factorization.

6750157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217778.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 6750157 is about 2598.1064258417. The cubic root of 6750157 is about 188.9896227144.

The spelling of 6750157 in words is "six million, seven hundred fifty thousand, one hundred fifty-seven".

Divisors: 1 31 217747 6750157