Search a number
-
+
3102847642640 = 245311251148243
BaseRepresentation
bin101101001001110000001…
…000011010110000010000
3101222121222210020212000202
4231021300020122300100
5401314112444031030
610333232321234332
7440113312536524
oct55116010326020
911877883225022
103102847642640
11a96a0166a949
124214294929a8
1319679c2aac95
14aa27021dd84
1555aa3979745
hex2d27021ac10

3102847642640 has 40 divisors (see below), whose sum is σ = 7446834348288. Its totient is φ = 1201102312320.

The previous prime is 3102847642633. The next prime is 3102847642721. The reversal of 3102847642640 is 462467482013.

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

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, 625571642 + ... + 625576601.

Almost surely, 23102847642640 is an apocalyptic number.

It is an amenable number.

3102847642640 is an abundant number, since it is smaller than the sum of its proper divisors (4343986705648).

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

3102847642640 is a wasteful number, since it uses less digits than its factorization.

3102847642640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251148287 (or 1251148281 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 3102847642640 in words is "three trillion, one hundred two billion, eight hundred forty-seven million, six hundred forty-two thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 1251148243 2502296486 5004592972 6255741215 10009185944 12511482430 20018371888 25022964860 38785595533 50045929720 77571191066 100091859440 155142382132 193927977665 310284764264 387855955330 620569528528 775711910660 1551423821320 3102847642640