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243121245142 = 2121560622571
BaseRepresentation
bin1110001001101100100…
…1111100101111010110
3212020112112111220101211
43202123021330233112
512440403014321032
6303404404012034
723364525325606
oct3423311745726
9766475456354
10243121245142
119411a671986
123b15099101a
1319c06c27849
14baa5016c06
1564cde9e747
hex389b27cbd6

243121245142 has 4 divisors (see below), whose sum is σ = 364681867716. Its totient is φ = 121560622570.

The previous prime is 243121245109. The next prime is 243121245181. The reversal of 243121245142 is 241542121342.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60780311284 + ... + 60780311287.

It is an arithmetic number, because the mean of its divisors is an integer number (91170466929).

Almost surely, 2243121245142 is an apocalyptic number.

243121245142 is a deficient number, since it is larger than the sum of its proper divisors (121560622574).

243121245142 is a wasteful number, since it uses less digits than its factorization.

243121245142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121560622573.

The product of its digits is 15360, while the sum is 31.

Adding to 243121245142 its reverse (241542121342), we get a palindrome (484663366484).

The spelling of 243121245142 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-five thousand, one hundred forty-two".

Divisors: 1 2 121560622571 243121245142