Search a number
-
+
1025445223 = 11101922993
BaseRepresentation
bin111101000111110…
…000110101100111
32122110120000101201
4331013300311213
54100003221343
6245430503331
734261066135
oct7507606547
92573500351
101025445223
114869231a0
12247504b47
131345a8c2a
149a292755
156005a94d
hex3d1f0d67

1025445223 has 8 divisors (see below), whose sum is σ = 1129744656. Its totient is φ = 922992000.

The previous prime is 1025445221. The next prime is 1025445227. The reversal of 1025445223 is 3225445201.

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

It is a cyclic number.

It is not a de Polignac number, because 1025445223 - 21 = 1025445221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025445191 and 1025445200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025445221) 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, 460386 + ... + 462607.

It is an arithmetic number, because the mean of its divisors is an integer number (141218082).

Almost surely, 21025445223 is an apocalyptic number.

1025445223 is a deficient number, since it is larger than the sum of its proper divisors (104299433).

1025445223 is a wasteful number, since it uses less digits than its factorization.

1025445223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923105.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1025445223 is about 32022.5736473507. The cubic root of 1025445223 is about 1008.4108010939.

The spelling of 1025445223 in words is "one billion, twenty-five million, four hundred forty-five thousand, two hundred twenty-three".

Divisors: 1 11 101 1111 922993 10152923 93222293 1025445223