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145352455 = 548759693
BaseRepresentation
bin10001010100111…
…10011100000111
3101010111200002021
420222132130013
5244202234310
622231224011
73413322043
oct1052363407
9333450067
10145352455
11750584a6
1240818007
1324162691
1415439023
15cb625da
hex8a9e707

145352455 has 8 divisors (see below), whose sum is σ = 174784032. Its totient is φ = 116041248.

The previous prime is 145352453. The next prime is 145352497. The reversal of 145352455 is 554253541.

145352455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145352455 - 21 = 145352453 is a prime.

It is a super-2 number, since 2×1453524552 = 42254672349054050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145352455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145352453) 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, 27412 + ... + 32281.

It is an arithmetic number, because the mean of its divisors is an integer number (21848004).

Almost surely, 2145352455 is an apocalyptic number.

145352455 is a deficient number, since it is larger than the sum of its proper divisors (29431577).

145352455 is an equidigital number, since it uses as much as digits as its factorization.

145352455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60185.

The product of its digits is 60000, while the sum is 34.

The square root of 145352455 is about 12056.2205935359. The cubic root of 145352455 is about 525.7841102493.

The spelling of 145352455 in words is "one hundred forty-five million, three hundred fifty-two thousand, four hundred fifty-five".

Divisors: 1 5 487 2435 59693 298465 29070491 145352455