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145057053 = 3224321557
BaseRepresentation
bin10001010010101…
…10010100011101
3101002221122212110
420221112110131
5244113311203
622221024233
73410651601
oct1051262435
9332848773
10145057053
1174976569
12406b5079
132408b09b
141539d501
15cb04d03
hex8a5651d

145057053 has 8 divisors (see below), whose sum is σ = 193504608. Its totient is φ = 96657104.

The previous prime is 145057049. The next prime is 145057069. The reversal of 145057053 is 350750541.

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 145057053 - 22 = 145057049 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145057053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145057853) 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, 4050 + ... + 17507.

It is an arithmetic number, because the mean of its divisors is an integer number (24188076).

Almost surely, 2145057053 is an apocalyptic number.

It is an amenable number.

145057053 is a deficient number, since it is larger than the sum of its proper divisors (48447555).

145057053 is a wasteful number, since it uses less digits than its factorization.

145057053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23803.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 145057053 is about 12043.9633426875. The cubic root of 145057053 is about 525.4276823402.

The spelling of 145057053 in words is "one hundred forty-five million, fifty-seven thousand, fifty-three".

Divisors: 1 3 2243 6729 21557 64671 48352351 145057053