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1225456330 = 25723761153
BaseRepresentation
bin100100100001010…
…1111101011001010
310011101220122001111
41021002233223022
510002204100310
6321333440534
742240130660
oct11102575312
93141818044
101225456330
1157981352a
122a24a014a
13166b682b7
14b8a78c30
15728b828a
hex490afaca

1225456330 has 32 divisors (see below), whose sum is σ = 2630548224. Its totient is φ = 401888256.

The previous prime is 1225456313. The next prime is 1225456343. The reversal of 1225456330 is 336545221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1225456292 and 1225456301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378967 + ... + 382186.

It is an arithmetic number, because the mean of its divisors is an integer number (82204632).

Almost surely, 21225456330 is an apocalyptic number.

1225456330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225456330 is an abundant number, since it is smaller than the sum of its proper divisors (1405091894).

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

1225456330 is a wasteful number, since it uses less digits than its factorization.

1225456330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761190.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1225456330 is about 35006.5183930079. The cubic root of 1225456330 is about 1070.1203259449.

The spelling of 1225456330 in words is "one billion, two hundred twenty-five million, four hundred fifty-six thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 761153 1522306 3805765 5328071 7611530 10656142 17506519 26640355 35013038 53280710 87532595 122545633 175065190 245091266 612728165 1225456330