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145057051 = 1913971913
BaseRepresentation
bin10001010010101…
…10010100011011
3101002221122212101
420221112110123
5244113311201
622221024231
73410651566
oct1051262433
9332848771
10145057051
1174976567
12406b5077
132408b099
141539d4dd
15cb04d01
hex8a5651b

145057051 has 8 divisors (see below), whose sum is σ = 146260224. Its totient is φ = 143858880.

The previous prime is 145057049. The next prime is 145057069. The reversal of 145057051 is 150750541.

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 145057051 - 21 = 145057049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145057151) 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, 74871 + ... + 76783.

It is an arithmetic number, because the mean of its divisors is an integer number (18282528).

Almost surely, 2145057051 is an apocalyptic number.

145057051 is a deficient number, since it is larger than the sum of its proper divisors (1203173).

145057051 is a wasteful number, since it uses less digits than its factorization.

145057051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 145057051 is about 12043.9632596583. The cubic root of 145057051 is about 525.4276799254.

The spelling of 145057051 in words is "one hundred forty-five million, fifty-seven thousand, fifty-one".

Divisors: 1 191 397 1913 75827 365383 759461 145057051