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125221323 = 3103405247
BaseRepresentation
bin1110111011010…
…11100111001011
322201121220100210
413131223213023
5224024040243
620231532203
73050235513
oct735534713
9281556323
10125221323
11647586a7
1235b2a063
131cc34676
14128b8843
15aed7933
hex776b9cb

125221323 has 8 divisors (see below), whose sum is σ = 168583168. Its totient is φ = 82670184.

The previous prime is 125221297. The next prime is 125221331. The reversal of 125221323 is 323122521.

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

It is not a de Polignac number, because 125221323 - 26 = 125221259 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 125221323.

It is not an unprimeable number, because it can be changed into a prime (125221123) 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, 202315 + ... + 202932.

It is an arithmetic number, because the mean of its divisors is an integer number (21072896).

Almost surely, 2125221323 is an apocalyptic number.

125221323 is a deficient number, since it is larger than the sum of its proper divisors (43361845).

125221323 is a wasteful number, since it uses less digits than its factorization.

125221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405353.

The product of its digits is 720, while the sum is 21.

The square root of 125221323 is about 11190.2333755825. The cubic root of 125221323 is about 500.2949233396.

Adding to 125221323 its reverse (323122521), we get a palindrome (448343844).

The spelling of 125221323 in words is "one hundred twenty-five million, two hundred twenty-one thousand, three hundred twenty-three".

Divisors: 1 3 103 309 405247 1215741 41740441 125221323