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1020433201 = 7313978537
BaseRepresentation
bin111100110100101…
…001001100110001
32122010010101012021
4330310221030301
54042212330301
6245131231441
734200352624
oct7464511461
92563111167
101020433201
1148400a627
122458a8581
13133542838
1499749dbb
155e8ba8a1
hex3cd29331

1020433201 has 4 divisors (see below), whose sum is σ = 1034411812. Its totient is φ = 1006454592.

The previous prime is 1020433187. The next prime is 1020433217. The reversal of 1020433201 is 1023340201.

It is a happy number.

1020433201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1023340201 = 1378718477.

It can be written as a sum of positive squares in 2 ways, for example, as 781761600 + 238671601 = 27960^2 + 15449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020433201 - 29 = 1020432689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020433241) 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, 6989196 + ... + 6989341.

It is an arithmetic number, because the mean of its divisors is an integer number (258602953).

Almost surely, 21020433201 is an apocalyptic number.

It is an amenable number.

1020433201 is a deficient number, since it is larger than the sum of its proper divisors (13978611).

1020433201 is an equidigital number, since it uses as much as digits as its factorization.

1020433201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13978610.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1020433201 is about 31944.2201501304. The cubic root of 1020433201 is about 1006.7651959147.

Adding to 1020433201 its reverse (1023340201), we get a palindrome (2043773402).

The spelling of 1020433201 in words is "one billion, twenty million, four hundred thirty-three thousand, two hundred one".

Divisors: 1 73 13978537 1020433201