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3104042420 = 225721321517
BaseRepresentation
bin1011100100000011…
…1110110110110100
322000022210200201002
42321000332312310
522324113324140
61232002222432
7136630632233
oct27100766664
98008720632
103104042420
111353173016
12727654a18
133a6111cbb
1421636ab1a
15132796415
hexb903edb4

3104042420 has 24 divisors (see below), whose sum is σ = 6519695784. Its totient is φ = 1241387136.

The previous prime is 3104042387. The next prime is 3104042423. The reversal of 3104042420 is 242404013.

It can be written as a sum of positive squares in 4 ways, for example, as 532132624 + 2571909796 = 23068^2 + 50714^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3104042392 and 3104042401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3104042423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133502 + ... + 155018.

It is an arithmetic number, because the mean of its divisors is an integer number (271653991).

Almost surely, 23104042420 is an apocalyptic number.

It is an amenable number.

3104042420 is an abundant number, since it is smaller than the sum of its proper divisors (3415653364).

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

3104042420 is a wasteful number, since it uses less digits than its factorization.

3104042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28739 (or 28737 counting only the distinct ones).

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

The square root of 3104042420 is about 55713.9338047494. The cubic root of 3104042420 is about 1458.7332510247.

Adding to 3104042420 its reverse (242404013), we get a palindrome (3346446433).

The spelling of 3104042420 in words is "three billion, one hundred four million, forty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7213 14426 21517 28852 36065 43034 72130 86068 107585 144260 215170 430340 155202121 310404242 620808484 776010605 1552021210 3104042420