Search a number
-
+
2795405680 = 24547972949
BaseRepresentation
bin1010011010011110…
…1000000101110000
321012211001022200201
42212213220011300
521211110440210
61141215124544
7126162361534
oct24647500560
97184038621
102795405680
111204a2a731
12660213754
133571ac002
141c7389bc4
1511562d53a
hexa69e8170

2795405680 has 40 divisors (see below), whose sum is σ = 6512976000. Its totient is φ = 1115812608.

The previous prime is 2795405651. The next prime is 2795405713. The reversal of 2795405680 is 865045972.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 2795405680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846 + ... + 74794.

It is an arithmetic number, because the mean of its divisors is an integer number (162824400).

Almost surely, 22795405680 is an apocalyptic number.

2795405680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2795405680 is an abundant number, since it is smaller than the sum of its proper divisors (3717570320).

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

2795405680 is a wasteful number, since it uses less digits than its factorization.

2795405680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73441 (or 73435 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 2795405680 is about 52871.5961552136. The cubic root of 2795405680 is about 1408.6884304525.

The spelling of 2795405680 in words is "two billion, seven hundred ninety-five million, four hundred five thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 479 958 1916 2395 3832 4790 7664 9580 19160 38320 72949 145898 291796 364745 583592 729490 1167184 1458980 2917960 5835920 34942571 69885142 139770284 174712855 279540568 349425710 559081136 698851420 1397702840 2795405680