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2141235445 = 52920897069
BaseRepresentation
bin111111110100000…
…1010100011110101
312112020010000211111
41333220022203311
513341124013240
6552250035021
7104030125636
oct17750124365
95466100744
102141235445
119a9742978
124b9118a71
132817c7b2b
1416454188d
15c7eb01ea
hex7fa0a8f5

2141235445 has 16 divisors (see below), whose sum is σ = 2659734000. Its totient is φ = 1652894208.

The previous prime is 2141235431. The next prime is 2141235461. The reversal of 2141235445 is 5445321412.

It can be written as a sum of positive squares in 8 ways, for example, as 14273284 + 2126962161 = 3778^2 + 46119^2 .

It is not a de Polignac number, because 2141235445 - 25 = 2141235413 is a prime.

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, 299371 + ... + 306439.

It is an arithmetic number, because the mean of its divisors is an integer number (166233375).

Almost surely, 22141235445 is an apocalyptic number.

It is an amenable number.

2141235445 is a deficient number, since it is larger than the sum of its proper divisors (518498555).

2141235445 is a wasteful number, since it uses less digits than its factorization.

2141235445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9192.

The product of its digits is 19200, while the sum is 31.

The square root of 2141235445 is about 46273.4853344764. The cubic root of 2141235445 is about 1288.9066803499.

Adding to 2141235445 its reverse (5445321412), we get a palindrome (7586556857).

The spelling of 2141235445 in words is "two billion, one hundred forty-one million, two hundred thirty-five thousand, four hundred forty-five".

Divisors: 1 5 29 145 2089 7069 10445 35345 60581 205001 302905 1025005 14767141 73835705 428247089 2141235445