Search a number
-
+
1236738048 = 2133721379
BaseRepresentation
bin100100110110111…
…0010000000000000
310012012010210122220
41021231302000000
510013101104143
6322415331040
742435046200
oct11155620000
93165123586
101236738048
11585119667
122a6220a80
131692b8380
14ba374400
1573895d83
hex49b72000

1236738048 has 336 divisors, whose sum is σ = 4183562880. Its totient is φ = 322043904.

The previous prime is 1236738011. The next prime is 1236738077. The reversal of 1236738048 is 8408376321.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15654873 + ... + 15654951.

It is an arithmetic number, because the mean of its divisors is an integer number (12451080).

Almost surely, 21236738048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1236738048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2091781440).

1236738048 is an abundant number, since it is smaller than the sum of its proper divisors (2946824832).

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

1236738048 is an equidigital number, since it uses as much as digits as its factorization.

1236738048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 1236738048 is about 35167.2866169683. The cubic root of 1236738048 is about 1073.3941910463.

The spelling of 1236738048 in words is "one billion, two hundred thirty-six million, seven hundred thirty-eight thousand, forty-eight".