Search a number
-
+
161460162020 = 22539720335033
BaseRepresentation
bin1001011001011111000…
…1101000110111100100
3120102202102210001201202
42112113301220313210
510121132300141040
6202101311342032
714444063506223
oct2262761506744
9512672701652
10161460162020
1162525063533
1227360821918
13122c1921011
147b59806cba
1542eec68015
hex2597c68de4

161460162020 has 24 divisors (see below), whose sum is σ = 339920428344. Its totient is φ = 64421381376.

The previous prime is 161460162011. The next prime is 161460162029. The reversal of 161460162020 is 20261064161.

It is an interprime number because it is at equal distance from previous prime (161460162011) and next prime (161460162029).

It can be written as a sum of positive squares in 4 ways, for example, as 28878244096 + 132581917924 = 169936^2 + 364118^2 .

It is not an unprimeable number, because it can be changed into a prime (161460162029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10159577 + ... + 10175456.

It is an arithmetic number, because the mean of its divisors is an integer number (14163351181).

Almost surely, 2161460162020 is an apocalyptic number.

161460162020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161460162020 is an abundant number, since it is smaller than the sum of its proper divisors (178460266324).

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

161460162020 is a wasteful number, since it uses less digits than its factorization.

161460162020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20335439 (or 20335437 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 161460162020 in words is "one hundred sixty-one billion, four hundred sixty million, one hundred sixty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 397 794 1588 1985 3970 7940 20335033 40670066 81340132 101675165 203350330 406700660 8073008101 16146016202 32292032404 40365040505 80730081010 161460162020