Search a number
-
+
2031201442 = 211366113597
BaseRepresentation
bin111100100010001…
…1010110010100010
312020120001201120001
41321010122302202
513124441421232
6533315410214
7101222633044
oct17104326242
95216051501
102031201442
11952618786
124882b396a
13264a8015a
14153a9ba94
15bd4c76e7
hex7911aca2

2031201442 has 16 divisors (see below), whose sum is σ = 3078641592. Its totient is φ = 1005016320.

The previous prime is 2031201433. The next prime is 2031201443. The reversal of 2031201442 is 2441021302.

It can be written as a sum of positive squares in 4 ways, for example, as 981506241 + 1049695201 = 31329^2 + 32399^2 .

It is not an unprimeable number, because it can be changed into a prime (2031201443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142588 + ... + 156184.

Almost surely, 22031201442 is an apocalyptic number.

2031201442 is a deficient number, since it is larger than the sum of its proper divisors (1047440150).

2031201442 is a wasteful number, since it uses less digits than its factorization.

2031201442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14373.

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

The square root of 2031201442 is about 45068.8522374378. The cubic root of 2031201442 is about 1266.4391630037.

Adding to 2031201442 its reverse (2441021302), we get a palindrome (4472222744).

The spelling of 2031201442 in words is "two billion, thirty-one million, two hundred one thousand, four hundred forty-two".

Divisors: 1 2 113 226 661 1322 13597 27194 74693 149386 1536461 3072922 8987617 17975234 1015600721 2031201442