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230630442152 = 23112238254589
BaseRepresentation
bin1101011011001010100…
…1010100010010101000
3211001022000212100220212
43112302221110102220
512234312343122102
6253541122440252
722443144261425
oct3266251242250
9731260770825
10230630442152
118989a965800
1238845803088
13189961ab166
14b23c158d4c
155eec5d0c52
hex35b2a544a8

230630442152 has 24 divisors (see below), whose sum is σ = 475317907050. Its totient is φ = 104832018720.

The previous prime is 230630442113. The next prime is 230630442157. The reversal of 230630442152 is 251244036032.

It can be written as a sum of positive squares in only one way, i.e., 228688629796 + 1941812356 = 478214^2 + 44066^2 .

It is a super-2 number, since 2×2306304421522 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230630442157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119126327 + ... + 119128262.

Almost surely, 2230630442152 is an apocalyptic number.

230630442152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

230630442152 is an abundant number, since it is smaller than the sum of its proper divisors (244687464898).

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

230630442152 is a wasteful number, since it uses less digits than its factorization.

230630442152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238254617 (or 238254602 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 230630442152 its reverse (251244036032), we get a palindrome (481874478184).

The spelling of 230630442152 in words is "two hundred thirty billion, six hundred thirty million, four hundred forty-two thousand, one hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 121 242 484 968 238254589 476509178 953018356 1906036712 2620800479 5241600958 10483201916 20966403832 28828805269 57657610538 115315221076 230630442152