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125221242 = 2340935099
BaseRepresentation
bin1110111011010…
…11100101111010
322201121220020210
413131223211322
5224024034432
620231531550
73050235336
oct735534572
9281556223
10125221242
1164758633
1235b29bb6
131cc34613
14128b87c6
15aed78cc
hex776b97a

125221242 has 16 divisors (see below), whose sum is σ = 250552800. Its totient is φ = 41722032.

The previous prime is 125221237. The next prime is 125221247. The reversal of 125221242 is 242122521.

It is an interprime number because it is at equal distance from previous prime (125221237) and next prime (125221247).

It is not an unprimeable number, because it can be changed into a prime (125221247) 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, 22009 + ... + 27107.

It is an arithmetic number, because the mean of its divisors is an integer number (15659550).

Almost surely, 2125221242 is an apocalyptic number.

125221242 is an abundant number, since it is smaller than the sum of its proper divisors (125331558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125221242 is a wasteful number, since it uses less digits than its factorization.

125221242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9197.

The product of its digits is 640, while the sum is 21.

The square root of 125221242 is about 11190.2297563544. The cubic root of 125221242 is about 500.2948154668.

Adding to 125221242 its reverse (242122521), we get a palindrome (367343763).

The spelling of 125221242 in words is "one hundred twenty-five million, two hundred twenty-one thousand, two hundred forty-two".

Divisors: 1 2 3 6 4093 5099 8186 10198 12279 15297 24558 30594 20870207 41740414 62610621 125221242