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2031401242 = 213361721601
BaseRepresentation
bin111100100010100…
…1011100100011010
312020120102212122001
41321011023210122
513130014314432
6533323551214
7101224424413
oct17105134432
95216385561
102031401242
11952744902
1248838b50a
13264b20090
14153b1080a
15bd5169e7
hex7914b91a

2031401242 has 16 divisors (see below), whose sum is σ = 3282553512. Its totient is φ = 937267200.

The previous prime is 2031401231. The next prime is 2031401261. The reversal of 2031401242 is 2421041302.

It can be written as a sum of positive squares in 4 ways, for example, as 1154708361 + 876692881 = 33981^2 + 29609^2 .

It is a super-3 number, since 3×20314012423 (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83242 + ... + 104842.

Almost surely, 22031401242 is an apocalyptic number.

2031401242 is a deficient number, since it is larger than the sum of its proper divisors (1251152270).

2031401242 is a wasteful number, since it uses less digits than its factorization.

2031401242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25233.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2031401242 is about 45071.0687914099. The cubic root of 2031401242 is about 1266.4806862525.

Adding to 2031401242 its reverse (2421041302), we get a palindrome (4452442544).

The spelling of 2031401242 in words is "two billion, thirty-one million, four hundred one thousand, two hundred forty-two".

Divisors: 1 2 13 26 3617 7234 21601 43202 47021 94042 280813 561626 78130817 156261634 1015700621 2031401242