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4143422440 = 235844712263
BaseRepresentation
bin1111011011110111…
…1001101111101000
3101200202120200001101
43312331321233220
531441204004230
61523051531144
7204451336543
oct36675715750
911622520041
104143422440
111836943673
12977759ab4
13510559771
142b440985a
15193b55aca
hexf6f79be8

4143422440 has 32 divisors (see below), whose sum is σ = 9324564480. Its totient is φ = 1657037632.

The previous prime is 4143422429. The next prime is 4143422443. The reversal of 4143422440 is 442243414.

It is a junction number, because it is equal to n+sod(n) for n = 4143422399 and 4143422408.

It is not an unprimeable number, because it can be changed into a prime (4143422443) 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, 331749 + ... + 344011.

It is an arithmetic number, because the mean of its divisors is an integer number (291392640).

Almost surely, 24143422440 is an apocalyptic number.

4143422440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4143422440 is an abundant number, since it is smaller than the sum of its proper divisors (5181142040).

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

4143422440 is a wasteful number, since it uses less digits than its factorization.

4143422440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20721 (or 20717 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 4143422440 is about 64369.4216223822. The cubic root of 4143422440 is about 1606.1511189060.

Adding to 4143422440 its reverse (442243414), we get a palindrome (4585665854).

The spelling of 4143422440 in words is "four billion, one hundred forty-three million, four hundred twenty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 8447 12263 16894 24526 33788 42235 49052 61315 67576 84470 98104 122630 168940 245260 337880 490520 103585561 207171122 414342244 517927805 828684488 1035855610 2071711220 4143422440