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2031113401 = 61711812591
BaseRepresentation
bin111100100010000…
…0101010010111001
312020112220020210021
41321010011102321
513124431112101
6533313450441
7101222115262
oct17104052271
95215806707
102031113401
11952568619
12488270a21
13264a4c065
14153a77969
15bd4ab5a1
hex791054b9

2031113401 has 16 divisors (see below), whose sum is σ = 2105865216. Its totient is φ = 1958040000.

The previous prime is 2031113393. The next prime is 2031113407. The reversal of 2031113401 is 1043111302.

It is a cyclic number.

It is not a de Polignac number, because 2031113401 - 23 = 2031113393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031113407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782616 + ... + 785206.

It is an arithmetic number, because the mean of its divisors is an integer number (131616576).

Almost surely, 22031113401 is an apocalyptic number.

It is an amenable number.

2031113401 is a deficient number, since it is larger than the sum of its proper divisors (74751815).

2031113401 is a wasteful number, since it uses less digits than its factorization.

2031113401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2031113401 is about 45067.8754879792. The cubic root of 2031113401 is about 1266.4208651006.

Adding to 2031113401 its reverse (1043111302), we get a palindrome (3074224703).

The spelling of 2031113401 in words is "two billion, thirty-one million, one hundred thirteen thousand, four hundred one".

Divisors: 1 61 71 181 2591 4331 11041 12851 158051 183961 468971 783911 11221621 28607231 33296941 2031113401