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1120201405 = 5224040281
BaseRepresentation
bin100001011000100…
…1110101010111101
32220001212010102221
41002301032222331
54243232421110
6303053445341
736521361211
oct10261165275
92801763387
101120201405
11525362994
122731a0851
1314b10498b
14a8aba941
15685267da
hex42c4eabd

1120201405 has 4 divisors (see below), whose sum is σ = 1344241692. Its totient is φ = 896161120.

The previous prime is 1120201391. The next prime is 1120201429. The reversal of 1120201405 is 5041020211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5041020211 = 22741221671.

It can be written as a sum of positive squares in 2 ways, for example, as 728676036 + 391525369 = 26994^2 + 19787^2 .

It is a de Polignac number, because none of the positive numbers 2k-1120201405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112020136 + ... + 112020145.

It is an arithmetic number, because the mean of its divisors is an integer number (336060423).

Almost surely, 21120201405 is an apocalyptic number.

It is an amenable number.

1120201405 is a deficient number, since it is larger than the sum of its proper divisors (224040287).

1120201405 is an equidigital number, since it uses as much as digits as its factorization.

1120201405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224040286.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1120201405 is about 33469.4099888241. The cubic root of 1120201405 is about 1038.5610662984.

Adding to 1120201405 its reverse (5041020211), we get a palindrome (6161221616).

The spelling of 1120201405 in words is "one billion, one hundred twenty million, two hundred one thousand, four hundred five".

Divisors: 1 5 224040281 1120201405