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145356154 = 2174275181
BaseRepresentation
bin10001010100111…
…11010101111010
3101010111212011021
420222133111322
5244202344104
622231253054
73413335606
oct1052372572
9333455137
10145356154
1175060259
124081a18a
1324164278
141543a506
15cb63754
hex8a9f57a

145356154 has 8 divisors (see below), whose sum is σ = 230859828. Its totient is φ = 68402880.

The previous prime is 145356151. The next prime is 145356181. The reversal of 145356154 is 451653541.

It can be written as a sum of positive squares in 2 ways, for example, as 127080529 + 18275625 = 11273^2 + 4275^2 .

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

It is a super-2 number, since 2×1453561542 = 42256823011343432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 4275181 = 145356154 / (1 + 4 + 5 + 3 + 5 + 6 + 1 + 5 + 4).

It is not an unprimeable number, because it can be changed into a prime (145356151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2137557 + ... + 2137624.

Almost surely, 2145356154 is an apocalyptic number.

145356154 is a deficient number, since it is larger than the sum of its proper divisors (85503674).

145356154 is a wasteful number, since it uses less digits than its factorization.

145356154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275200.

The product of its digits is 36000, while the sum is 34.

The square root of 145356154 is about 12056.3739988439. The cubic root of 145356154 is about 525.7885703481.

The spelling of 145356154 in words is "one hundred forty-five million, three hundred fifty-six thousand, one hundred fifty-four".

Divisors: 1 2 17 34 4275181 8550362 72678077 145356154