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2131041445 = 51399133083
BaseRepresentation
bin111111100000101…
…0001110010100101
312111111221010021221
41333001101302211
513331021311240
6551243340341
7103544360551
oct17701216245
95444833257
102131041445
119a3a0aa85
124b58216b1
1327c668b90
1416304a861
15c7149a4a
hex7f051ca5

2131041445 has 16 divisors (see below), whose sum is σ = 2756823552. Its totient is φ = 1572056640.

The previous prime is 2131041413. The next prime is 2131041467. The reversal of 2131041445 is 5441401312.

It is not a de Polignac number, because 2131041445 - 25 = 2131041413 is a prime.

It is a super-3 number, since 3×21310414453 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47874 + ... + 80956.

It is an arithmetic number, because the mean of its divisors is an integer number (172301472).

Almost surely, 22131041445 is an apocalyptic number.

It is an amenable number.

2131041445 is a deficient number, since it is larger than the sum of its proper divisors (625782107).

2131041445 is a wasteful number, since it uses less digits than its factorization.

2131041445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34092.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2131041445 is about 46163.2044489981. The cubic root of 2131041445 is about 1286.8580155683.

Adding to 2131041445 its reverse (5441401312), we get a palindrome (7572442757).

The spelling of 2131041445 in words is "two billion, one hundred thirty-one million, forty-one thousand, four hundred forty-five".

Divisors: 1 5 13 65 991 4955 12883 33083 64415 165415 430079 2150395 32785253 163926265 426208289 2131041445