Search a number
-
+
1229862948 = 223102488579
BaseRepresentation
bin100100101001110…
…0011100000100100
310011201012111210120
41021103203200210
510004321103243
6322012121540
742322443156
oct11123434044
93151174716
101229862948
11581253266
122a3a662b0
13167a4bc72
14b94a4ad6
1572e88c83
hex494e3824

1229862948 has 12 divisors (see below), whose sum is σ = 2869680240. Its totient is φ = 409954312.

The previous prime is 1229862947. The next prime is 1229862967. The reversal of 1229862948 is 8492689221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1229862948.

It is not an unprimeable number, because it can be changed into a prime (1229862941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51244278 + ... + 51244301.

It is an arithmetic number, because the mean of its divisors is an integer number (239140020).

Almost surely, 21229862948 is an apocalyptic number.

It is an amenable number.

1229862948 is an abundant number, since it is smaller than the sum of its proper divisors (1639817292).

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

1229862948 is a wasteful number, since it uses less digits than its factorization.

1229862948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102488586 (or 102488584 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 1229862948 is about 35069.4018768499. The cubic root of 1229862948 is about 1071.4014733159.

The spelling of 1229862948 in words is "one billion, two hundred twenty-nine million, eight hundred sixty-two thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 102488579 204977158 307465737 409954316 614931474 1229862948