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1223240133 = 32931391627
BaseRepresentation
bin100100011101001…
…0010100111000101
310011020202001000010
41020322102213011
510001122141013
6321214140433
742212240523
oct11072224705
93136661003
101223240133
1157853a465
122a17b1719
1316657063b
14b865d313
15725cb7c3
hex48e929c5

1223240133 has 8 divisors (see below), whose sum is σ = 1636554528. Its totient is φ = 812709584.

The previous prime is 1223240113. The next prime is 1223240143. The reversal of 1223240133 is 3310423221.

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 1223240133 - 29 = 1223239621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223240113) 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, 694935 + ... + 696692.

It is an arithmetic number, because the mean of its divisors is an integer number (204569316).

Almost surely, 21223240133 is an apocalyptic number.

It is an amenable number.

1223240133 is a deficient number, since it is larger than the sum of its proper divisors (413314395).

1223240133 is a wasteful number, since it uses less digits than its factorization.

1223240133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391923.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1223240133 is about 34974.8500068263. The cubic root of 1223240133 is about 1069.4748443427.

Adding to 1223240133 its reverse (3310423221), we get a palindrome (4533663354).

The spelling of 1223240133 in words is "one billion, two hundred twenty-three million, two hundred forty thousand, one hundred thirty-three".

Divisors: 1 3 293 879 1391627 4174881 407746711 1223240133