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145041427 = 237188819
BaseRepresentation
bin10001010010100…
…10100000010011
3101002220212102201
420221102200103
5244112311202
622220424031
73410555206
oct1051224023
9332825381
10145041427
1174965853
12406a8017
1324083c3b
141539793d
15cb00387
hex8a52813

145041427 has 8 divisors (see below), whose sum is σ = 153480960. Its totient is φ = 136779720.

The previous prime is 145041419. The next prime is 145041503. The reversal of 145041427 is 724140541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145041427 - 23 = 145041419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145041395 and 145041404.

It is not an unprimeable number, because it can be changed into a prime (145041227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42777 + ... + 46042.

It is an arithmetic number, because the mean of its divisors is an integer number (19185120).

Almost surely, 2145041427 is an apocalyptic number.

145041427 is a deficient number, since it is larger than the sum of its proper divisors (8439533).

145041427 is an equidigital number, since it uses as much as digits as its factorization.

145041427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88913.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 145041427 is about 12043.3146184927. The cubic root of 145041427 is about 525.4088147576.

Adding to 145041427 its reverse (724140541), we get a palindrome (869181968).

It can be divided in two parts, 14504 and 1427, that added together give a triangular number (15931 = T178).

The spelling of 145041427 in words is "one hundred forty-five million, forty-one thousand, four hundred twenty-seven".

Divisors: 1 23 71 1633 88819 2042837 6306149 145041427