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145429238707 = 353053411919
BaseRepresentation
bin1000011101110001000…
…0100001001110110011
3111220101012202210010021
42013130100201032303
54340314341114312
6150450445144311
713335605063404
oct2073420411663
9456335683107
10145429238707
1156749017585
1224227b5b097
131093862b78c
1470787059ab
153bb26b4c07
hex21dc4213b3

145429238707 has 4 divisors (see below), whose sum is σ = 145430003680. Its totient is φ = 145428473736.

The previous prime is 145429238677. The next prime is 145429238711. The reversal of 145429238707 is 707832924541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 707832924541 = 6369191111339.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145429238707 is a prime.

It is a super-2 number, since 2×1454292387072 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145429238767) 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 3 ways as a sum of consecutive naturals, for example, 147094 + ... + 559012.

It is an arithmetic number, because the mean of its divisors is an integer number (36357500920).

Almost surely, 2145429238707 is an apocalyptic number.

145429238707 is a deficient number, since it is larger than the sum of its proper divisors (764973).

145429238707 is an equidigital number, since it uses as much as digits as its factorization.

145429238707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764972.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 145429238707 in words is "one hundred forty-five billion, four hundred twenty-nine million, two hundred thirty-eight thousand, seven hundred seven".

Divisors: 1 353053 411919 145429238707