Search a number
-
+
154688088020 = 2257734404401
BaseRepresentation
bin1001000000010000100…
…0001110011111010100
3112210021110221001122012
42100010020032133110
510013300122304040
6155021314323352
714114213024234
oct2200410163724
9483243831565
10154688088020
115a66a436064
1225b90889558
13117828cc33b
1476b625bcc4
154055472865
hex240420e7d4

154688088020 has 12 divisors (see below), whose sum is σ = 324844984884. Its totient is φ = 61875235200.

The previous prime is 154688088017. The next prime is 154688088031. The reversal of 154688088020 is 20880886451.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30458626576 + 124229461444 = 174524^2 + 352462^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 154688088020.

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, 3867202181 + ... + 3867202220.

It is an arithmetic number, because the mean of its divisors is an integer number (27070415407).

Almost surely, 2154688088020 is an apocalyptic number.

154688088020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154688088020 is an abundant number, since it is smaller than the sum of its proper divisors (170156896864).

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

154688088020 is a wasteful number, since it uses less digits than its factorization.

154688088020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734404410 (or 7734404408 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 50.

The spelling of 154688088020 in words is "one hundred fifty-four billion, six hundred eighty-eight million, eighty-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 7734404401 15468808802 30937617604 38672022005 77344044010 154688088020