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113221142 = 256610571
BaseRepresentation
bin1101011111110…
…01111000010110
321220001020012122
412233321320112
5212441034032
615122415542
72543235536
oct657717026
9256036178
10113221142
1158a017a1
1231b015b2
131a5c2578
14110734c6
159e17012
hex6bf9e16

113221142 has 4 divisors (see below), whose sum is σ = 169831716. Its totient is φ = 56610570.

The previous prime is 113221127. The next prime is 113221181. The reversal of 113221142 is 241122311.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 113221142.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 28305284 + ... + 28305287.

It is an arithmetic number, because the mean of its divisors is an integer number (42457929).

Almost surely, 2113221142 is an apocalyptic number.

113221142 is a deficient number, since it is larger than the sum of its proper divisors (56610574).

113221142 is an equidigital number, since it uses as much as digits as its factorization.

113221142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56610573.

The product of its digits is 96, while the sum is 17.

The square root of 113221142 is about 10640.5423733943. The cubic root of 113221142 is about 483.7739849272.

Adding to 113221142 its reverse (241122311), we get a palindrome (354343453).

The spelling of 113221142 in words is "one hundred thirteen million, two hundred twenty-one thousand, one hundred forty-two".

Divisors: 1 2 56610571 113221142