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3108196640 = 25556934141
BaseRepresentation
bin1011100101000011…
…0101000100100000
322000121121202020002
42321100311010200
522331144243030
61232231235132
7140011143533
oct27120650440
98017552202
103108196640
11135555015a
12728b18aa8
133a6c37b13
14216b2ca1a
15132d17245
hexb9435120

3108196640 has 48 divisors (see below), whose sum is σ = 7356235320. Its totient is φ = 1241057280.

The previous prime is 3108196639. The next prime is 3108196661. The reversal of 3108196640 is 466918013.

It can be written as a sum of positive squares in 4 ways, for example, as 1990230544 + 1117966096 = 44612^2 + 33436^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3108196594 and 3108196603.

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, 73970 + ... + 108110.

Almost surely, 23108196640 is an apocalyptic number.

It is an amenable number.

3108196640 is an abundant number, since it is smaller than the sum of its proper divisors (4248038680).

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

3108196640 is a wasteful number, since it uses less digits than its factorization.

3108196640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34725 (or 34717 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 3108196640 is about 55751.2030363471. The cubic root of 3108196640 is about 1459.3837143734.

It can be divided in two parts, 31081 and 96640, that added together give a palindrome (127721).

The spelling of 3108196640 in words is "three billion, one hundred eight million, one hundred ninety-six thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 569 1138 2276 2845 4552 5690 9104 11380 18208 22760 34141 45520 68282 91040 136564 170705 273128 341410 546256 682820 1092512 1365640 2731280 5462560 19426229 38852458 77704916 97131145 155409832 194262290 310819664 388524580 621639328 777049160 1554098320 3108196640