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1049971429 = 1380767033
BaseRepresentation
bin111110100101010…
…100101011100101
32201011201002000201
4332211110223211
54122243041204
6252104310501
735006416123
oct7645245345
92634632021
101049971429
11499755091
12253772431
131396b5590
149d638913
15622a29a4
hex3e954ae5

1049971429 has 4 divisors (see below), whose sum is σ = 1130738476. Its totient is φ = 969204384.

The previous prime is 1049971421. The next prime is 1049971441. The reversal of 1049971429 is 9241799401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9241799401 = 62211485581.

It can be written as a sum of positive squares in 2 ways, for example, as 134606404 + 915365025 = 11602^2 + 30255^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049971429 - 23 = 1049971421 is a prime.

It is a super-2 number, since 2×10499714292 = 2204880003432604082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049971421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40383504 + ... + 40383529.

It is an arithmetic number, because the mean of its divisors is an integer number (282684619).

Almost surely, 21049971429 is an apocalyptic number.

It is an amenable number.

1049971429 is a deficient number, since it is larger than the sum of its proper divisors (80767047).

1049971429 is an equidigital number, since it uses as much as digits as its factorization.

1049971429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80767046.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 1049971429 is about 32403.2626289391. The cubic root of 1049971429 is about 1016.3871378549.

The spelling of 1049971429 in words is "one billion, forty-nine million, nine hundred seventy-one thousand, four hundred twenty-nine".

Divisors: 1 13 80767033 1049971429