Search a number
-
+
3442761820 = 225172138091
BaseRepresentation
bin1100110100110100…
…0110000001011100
322212221011102101001
43031031012001130
524022321334240
61325342200044
7151212664321
oct31515060134
98787142331
103442761820
111507392a03
12800b83024
1342b348794
1424933cb48
151523a289a
hexcd34605c

3442761820 has 12 divisors (see below), whose sum is σ = 7229799864. Its totient is φ = 1377104720.

The previous prime is 3442761769. The next prime is 3442761853. The reversal of 3442761820 is 281672443.

It is a self number, because there is not a number n which added to its sum of digits gives 3442761820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86069026 + ... + 86069065.

It is an arithmetic number, because the mean of its divisors is an integer number (602483322).

Almost surely, 23442761820 is an apocalyptic number.

It is an amenable number.

3442761820 is an abundant number, since it is smaller than the sum of its proper divisors (3787038044).

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

3442761820 is a wasteful number, since it uses less digits than its factorization.

3442761820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172138100 (or 172138098 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 3442761820 is about 58675.0527907730. The cubic root of 3442761820 is about 1509.9723428117.

The spelling of 3442761820 in words is "three billion, four hundred forty-two million, seven hundred sixty-one thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 172138091 344276182 688552364 860690455 1721380910 3442761820