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145435357 = 178555021
BaseRepresentation
bin10001010101100…
…10101011011101
3101010122212210201
420222302223131
5244212412412
622233103501
73414115534
oct1052625335
9333585721
10145435357
1175104811
1240857b91
1324191332
141545b31b
15cb7be57
hex8ab2add

145435357 has 4 divisors (see below), whose sum is σ = 153990396. Its totient is φ = 136880320.

The previous prime is 145435351. The next prime is 145435373. The reversal of 145435357 is 753534541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 753534541 = 6131229257.

It can be written as a sum of positive squares in 2 ways, for example, as 111957561 + 33477796 = 10581^2 + 5786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145435357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145435351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4277494 + ... + 4277527.

It is an arithmetic number, because the mean of its divisors is an integer number (38497599).

Almost surely, 2145435357 is an apocalyptic number.

145435357 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

145435357 is a deficient number, since it is larger than the sum of its proper divisors (8555039).

145435357 is an equidigital number, since it uses as much as digits as its factorization.

145435357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555038.

The product of its digits is 126000, while the sum is 37.

The square root of 145435357 is about 12059.6582455723. The cubic root of 145435357 is about 525.8840518476.

Adding to 145435357 its reverse (753534541), we get a palindrome (898969898).

It can be divided in two parts, 14543 and 5357, that added together give a triangular number (19900 = T199).

The spelling of 145435357 in words is "one hundred forty-five million, four hundred thirty-five thousand, three hundred fifty-seven".

Divisors: 1 17 8555021 145435357