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145342174 = 2136753161
BaseRepresentation
bin10001010100110…
…11111011011110
3101010111010222111
420222123323132
5244201422144
622231104234
73413250055
oct1052337336
9333433874
10145342174
11750507aa
124081207a
132415aab3
141543539c
15cb5e534
hex8a9bede

145342174 has 8 divisors (see below), whose sum is σ = 218176848. Its totient is φ = 72616560.

The previous prime is 145342159. The next prime is 145342207. The reversal of 145342174 is 471243541.

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

It is a super-2 number, since 2×1453421742 = 42248695086092552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23847 + ... + 29314.

It is an arithmetic number, because the mean of its divisors is an integer number (27272106).

Almost surely, 2145342174 is an apocalyptic number.

145342174 is a deficient number, since it is larger than the sum of its proper divisors (72834674).

145342174 is a wasteful number, since it uses less digits than its factorization.

145342174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54530.

The product of its digits is 13440, while the sum is 31.

The square root of 145342174 is about 12055.7942085953. The cubic root of 145342174 is about 525.7717134540.

The spelling of 145342174 in words is "one hundred forty-five million, three hundred forty-two thousand, one hundred seventy-four".

Divisors: 1 2 1367 2734 53161 106322 72671087 145342174