Search a number
-
+
1230420162 = 231131939403
BaseRepresentation
bin100100101010110…
…1011100011000010
310011202020211011010
41021111223203002
510004441421122
6322032101350
742330253536
oct11125534302
93152224133
101230420162
115815a3974
122a4094856
13167bb578a
14b95abbc6
1573048e0c
hex4956b8c2

1230420162 has 32 divisors (see below), whose sum is σ = 2495746368. Its totient is φ = 404361216.

The previous prime is 1230420157. The next prime is 1230420179. The reversal of 1230420162 is 2610240321.

It is a super-2 number, since 2×12304201622 = 3027867550112212488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126153 + ... + 135555.

It is an arithmetic number, because the mean of its divisors is an integer number (77992074).

Almost surely, 21230420162 is an apocalyptic number.

1230420162 is an abundant number, since it is smaller than the sum of its proper divisors (1265326206).

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

1230420162 is a wasteful number, since it uses less digits than its factorization.

1230420162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9714.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1230420162 is about 35077.3454240768. The cubic root of 1230420162 is about 1071.5632555056.

Adding to 1230420162 its reverse (2610240321), we get a palindrome (3840660483).

The spelling of 1230420162 in words is "one billion, two hundred thirty million, four hundred twenty thousand, one hundred sixty-two".

Divisors: 1 2 3 6 113 193 226 339 386 579 678 1158 9403 18806 21809 28209 43618 56418 65427 130854 1062539 1814779 2125078 3187617 3629558 5444337 6375234 10888674 205070027 410140054 615210081 1230420162