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2031204404 = 221729870653
BaseRepresentation
bin111100100010001…
…1011100000110100
312020120001212121202
41321010123200310
513124442020104
6533315432032
7101222644505
oct17104334064
95216055552
102031204404
1195261aa29
124882b5618
13264a815c8
14153a9cbac
15bd4c851e
hex7911b834

2031204404 has 12 divisors (see below), whose sum is σ = 3763702404. Its totient is φ = 955860864.

The previous prime is 2031204401. The next prime is 2031204431. The reversal of 2031204404 is 4044021302.

It can be written as a sum of positive squares in 2 ways, for example, as 1718268304 + 312936100 = 41452^2 + 17690^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031204401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14935259 + ... + 14935394.

It is an arithmetic number, because the mean of its divisors is an integer number (313641867).

Almost surely, 22031204404 is an apocalyptic number.

It is an amenable number.

2031204404 is a deficient number, since it is larger than the sum of its proper divisors (1732498000).

2031204404 is a wasteful number, since it uses less digits than its factorization.

2031204404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29870674 (or 29870672 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2031204404 is about 45068.8850982582. The cubic root of 2031204404 is about 1266.4397785984.

Adding to 2031204404 its reverse (4044021302), we get a palindrome (6075225706).

The spelling of 2031204404 in words is "two billion, thirty-one million, two hundred four thousand, four hundred four".

Divisors: 1 2 4 17 34 68 29870653 59741306 119482612 507801101 1015602202 2031204404