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220875157 = 1032144419
BaseRepresentation
bin11010010101001…
…00100110010101
3120101121121202101
431022210212111
5423021001112
633530042101
75321256616
oct1512444625
9511547671
10220875157
11103750858
1261b79331
13369b5b79
1421497c0d
15145ce757
hexd2a4995

220875157 has 4 divisors (see below), whose sum is σ = 223019680. Its totient is φ = 218730636.

The previous prime is 220875143. The next prime is 220875181. The reversal of 220875157 is 751578022.

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 not a de Polignac number, because 220875157 - 27 = 220875029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220875197) 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 3 ways as a sum of consecutive naturals, for example, 1072107 + ... + 1072312.

It is an arithmetic number, because the mean of its divisors is an integer number (55754920).

Almost surely, 2220875157 is an apocalyptic number.

It is an amenable number.

220875157 is a deficient number, since it is larger than the sum of its proper divisors (2144523).

220875157 is a wasteful number, since it uses less digits than its factorization.

220875157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144522.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 220875157 is about 14861.8692296763. The cubic root of 220875157 is about 604.4804929483.

The spelling of 220875157 in words is "two hundred twenty million, eight hundred seventy-five thousand, one hundred fifty-seven".

Divisors: 1 103 2144419 220875157