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1225032303 = 31197382703
BaseRepresentation
bin100100100000100…
…1000001001101111
310011101010002101210
41021001020021233
510002102013203
6321320405503
742233413515
oct11101101157
93141102353
101225032303
115795539a0
122a2316893
13166a4a2b1
14b89a84b5
1572832803
hex4904826f

1225032303 has 16 divisors (see below), whose sum is σ = 1800239616. Its totient is φ = 734787840.

The previous prime is 1225032241. The next prime is 1225032307. The reversal of 1225032303 is 3032305221.

It is not a de Polignac number, because 1225032303 - 28 = 1225032047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225032303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225032307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188151 + ... + 194552.

It is an arithmetic number, because the mean of its divisors is an integer number (112514976).

Almost surely, 21225032303 is an apocalyptic number.

1225032303 is a deficient number, since it is larger than the sum of its proper divisors (575207313).

1225032303 is a wasteful number, since it uses less digits than its factorization.

1225032303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382814.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 1225032303 is about 35000.4614683864. The cubic root of 1225032303 is about 1069.9968855996.

Adding to 1225032303 its reverse (3032305221), we get a palindrome (4257337524).

The spelling of 1225032303 in words is "one billion, two hundred twenty-five million, thirty-two thousand, three hundred three".

Divisors: 1 3 11 33 97 291 1067 3201 382703 1148109 4209733 12629199 37122191 111366573 408344101 1225032303