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145245611 = 767730649
BaseRepresentation
bin10001010100001…
…00010110101011
3101010022020112002
420222010112223
5244140324421
622225041215
73412365410
oct1052042653
9333266462
10145245611
1174a951a5
124078620b
1324125b64
141540c107
15cb40b0b
hex8a845ab

145245611 has 8 divisors (see below), whose sum is σ = 166245600. Its totient is φ = 124308288.

The previous prime is 145245593. The next prime is 145245613. The reversal of 145245611 is 116542541.

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 145245611 - 210 = 145244587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145245613) 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, 10586 + ... + 20063.

It is an arithmetic number, because the mean of its divisors is an integer number (20780700).

Almost surely, 2145245611 is an apocalyptic number.

145245611 is a deficient number, since it is larger than the sum of its proper divisors (20999989).

145245611 is an equidigital number, since it uses as much as digits as its factorization.

145245611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31333.

The product of its digits is 4800, while the sum is 29.

The square root of 145245611 is about 12051.7887054163. The cubic root of 145245611 is about 525.6552495713.

The spelling of 145245611 in words is "one hundred forty-five million, two hundred forty-five thousand, six hundred eleven".

Divisors: 1 7 677 4739 30649 214543 20749373 145245611