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3133505780 = 225125172
BaseRepresentation
bin1011101011000101…
…1000000011110100
322002101020120211122
42322301120003310
522404134141110
61234533523112
7140436234236
oct27261300364
98071216748
103133505780
1113688672a9
127354a3498
133ac259942
1421a23a256
15135166255
hexbac580f4

3133505780 has 18 divisors (see below), whose sum is σ = 6580887894. Its totient is φ = 1253302176.

The previous prime is 3133505747. The next prime is 3133505813. The reversal of 3133505780 is 875053313.

It is an interprime number because it is at equal distance from previous prime (3133505747) and next prime (3133505813).

It can be written as a sum of positive squares in 3 ways, for example, as 1787936656 + 1345569124 = 42284^2 + 36682^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3133505780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244082 + ... + 256598.

It is an arithmetic number, because the mean of its divisors is an integer number (365604883).

Almost surely, 23133505780 is an apocalyptic number.

It is an amenable number.

3133505780 is an abundant number, since it is smaller than the sum of its proper divisors (3447382114).

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

3133505780 is an frugal number, since it uses more digits than its factorization.

3133505780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25043 (or 12524 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 3133505780 is about 55977.7257487297. The cubic root of 3133505780 is about 1463.3341235368.

The spelling of 3133505780 in words is "three billion, one hundred thirty-three million, five hundred five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 12517 25034 50068 62585 125170 250340 156675289 313350578 626701156 783376445 1566752890 3133505780