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145012529 = 734874079
BaseRepresentation
bin10001010010010…
…11011100110001
3101002212101210102
420221023130301
5244110400104
622220042145
73410405024
oct1051133461
9332771712
10145012529
1174946072
1240693355
1324073a3c
141538b1bb
15cae6a1e
hex8a4b731

145012529 has 8 divisors (see below), whose sum is σ = 147336960. Its totient is φ = 142697376.

The previous prime is 145012523. The next prime is 145012597. The reversal of 145012529 is 925210541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145012529 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145012523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33512 + ... + 37590.

It is an arithmetic number, because the mean of its divisors is an integer number (18417120).

Almost surely, 2145012529 is an apocalyptic number.

It is an amenable number.

145012529 is a deficient number, since it is larger than the sum of its proper divisors (2324431).

145012529 is an equidigital number, since it uses as much as digits as its factorization.

145012529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 145012529 is about 12042.1148059633. The cubic root of 145012529 is about 525.3739183543.

It can be divided in two parts, 145012 and 529, that added together give a palindrome (145541).

The spelling of 145012529 in words is "one hundred forty-five million, twelve thousand, five hundred twenty-nine".

Divisors: 1 73 487 4079 35551 297767 1986473 145012529