Search a number
-
+
154220299980 = 223512492057917
BaseRepresentation
bin1000111110100000111…
…1110000011011001100
3112202001212200222002020
42033220033300123030
510011320344044410
6154503044130140
714066502630555
oct2175017603314
9482055628066
10154220299980
115a44a37aa7a
1225a80096950
1311709a14c96
14767008d32c
15402936da70
hex23e83f06cc

154220299980 has 48 divisors (see below), whose sum is σ = 432162780000. Its totient is φ = 41092466688.

The previous prime is 154220299943. The next prime is 154220300093. The reversal of 154220299980 is 89992022451.

154220299980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954019 + ... + 1103898.

It is an arithmetic number, because the mean of its divisors is an integer number (9003391250).

Almost surely, 2154220299980 is an apocalyptic number.

154220299980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154220299980 is an abundant number, since it is smaller than the sum of its proper divisors (277942480020).

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

154220299980 is a wasteful number, since it uses less digits than its factorization.

154220299980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059178 (or 2059176 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 154220299980 in words is "one hundred fifty-four billion, two hundred twenty million, two hundred ninety-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1249 2498 3747 4996 6245 7494 12490 14988 18735 24980 37470 74940 2057917 4115834 6173751 8231668 10289585 12347502 20579170 24695004 30868755 41158340 61737510 123475020 2570338333 5140676666 7711014999 10281353332 12851691665 15422029998 25703383330 30844059996 38555074995 51406766660 77110149990 154220299980