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145510542231 = 348503514077
BaseRepresentation
bin1000011110000100011…
…0101010101110010111
3111220120212202102120220
42013201012222232113
54341001144322411
6150502511525423
713340613126045
oct2074106525627
9456525672526
10145510542231
115678a9a907a
122424b229873
131094c427282
14708542b395
153bb98c4b06
hex21e11aab97

145510542231 has 4 divisors (see below), whose sum is σ = 194014056312. Its totient is φ = 97007028152.

The previous prime is 145510542181. The next prime is 145510542239. The reversal of 145510542231 is 132245015541.

145510542231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132245015541 = 344081671847.

It is a cyclic number.

It is not a de Polignac number, because 145510542231 - 210 = 145510541207 is a prime.

It is a super-2 number, since 2×1455105422312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145510542192 and 145510542201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145510542239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24251757036 + ... + 24251757041.

It is an arithmetic number, because the mean of its divisors is an integer number (48503514078).

Almost surely, 2145510542231 is an apocalyptic number.

145510542231 is a deficient number, since it is larger than the sum of its proper divisors (48503514081).

145510542231 is an equidigital number, since it uses as much as digits as its factorization.

145510542231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48503514080.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 145510542231 its reverse (132245015541), we get a palindrome (277755557772).

The spelling of 145510542231 in words is "one hundred forty-five billion, five hundred ten million, five hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 3 48503514077 145510542231