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3440431420 = 225700124571
BaseRepresentation
bin1100110100010000…
…1101000100111100
322212202210000122221
43031010031010330
524021222301140
61325220215124
7151154120206
oct31504150474
98782700587
103440431420
111506041058
1280023a4a4
1342aa10b4a
14248cd3776
1515209214a
hexcd10d13c

3440431420 has 24 divisors (see below), whose sum is σ = 7226232048. Its totient is φ = 1375920000.

The previous prime is 3440431417. The next prime is 3440431427. The reversal of 3440431420 is 241340443.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440431427) 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, 127735 + ... + 152305.

It is an arithmetic number, because the mean of its divisors is an integer number (301093002).

Almost surely, 23440431420 is an apocalyptic number.

It is an amenable number.

3440431420 is an abundant number, since it is smaller than the sum of its proper divisors (3785800628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3440431420 is a wasteful number, since it uses less digits than its factorization.

3440431420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31581 (or 31579 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 3440431420 is about 58655.1909041306. The cubic root of 3440431420 is about 1509.6315666175.

Adding to 3440431420 its reverse (241340443), we get a palindrome (3681771863).

The spelling of 3440431420 in words is "three billion, four hundred forty million, four hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7001 14002 24571 28004 35005 49142 70010 98284 122855 140020 245710 491420 172021571 344043142 688086284 860107855 1720215710 3440431420