Search a number
-
+
1069438752 = 2532412472
BaseRepresentation
bin111111101111100…
…101011100100000
32202112100010011200
4333233211130200
54142234020002
6254041441200
735334036144
oct7757453440
92675303150
101069438752
114a9741188
1225a1a0200
131407403c5
14a2065224
1563d4ab1c
hex3fbe5720

1069438752 has 162 divisors, whose sum is σ = 3184936209. Its totient is φ = 340385280.

The previous prime is 1069438729. The next prime is 1069438757. The reversal of 1069438752 is 2578349601.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1069438752 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 763748496 + 305690256 = 27636^2 + 17484^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=23124.

It is a super-2 number, since 2×10694387522 = 2287398488558635008, which contains 22 as substring.

1069438752 is strictly pandigital in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 1069438698 and 1069438707.

It is not an unprimeable number, because it can be changed into a prime (1069438757) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22753993 + ... + 22754039.

It is a 1-persistent number, because it is pandigital, but 2⋅1069438752 = 2138877504 is not.

Almost surely, 21069438752 is an apocalyptic number.

1069438752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1069438752

1069438752 is an abundant number, since it is smaller than the sum of its proper divisors (2115497457).

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

1069438752 is an equidigital number, since it uses as much as digits as its factorization.

1069438752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1069438752 is about 32702.2744163154. The cubic root of 1069438752 is about 1022.6302588500.

The spelling of 1069438752 in words is "one billion, sixty-nine million, four hundred thirty-eight thousand, seven hundred fifty-two".