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145279306 = 2271268043
BaseRepresentation
bin10001010100011…
…00100101001010
3101010100221202001
420222030211022
5244142414211
622225501214
73412565554
oct1052144512
9333327661
10145279306
1175008547
12407a180a
13241382b3
141541a4d4
15cb4aac1
hex8a8c94a

145279306 has 8 divisors (see below), whose sum is σ = 218723904. Its totient is φ = 72371340.

The previous prime is 145279291. The next prime is 145279313. The reversal of 145279306 is 603972541.

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

It is a super-2 number, since 2×1452793062 = 42212153503683272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133480 + ... + 134563.

It is an arithmetic number, because the mean of its divisors is an integer number (27340488).

Almost surely, 2145279306 is an apocalyptic number.

145279306 is a deficient number, since it is larger than the sum of its proper divisors (73444598).

145279306 is a wasteful number, since it uses less digits than its factorization.

145279306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268316.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 145279306 is about 12053.1865496225. The cubic root of 145279306 is about 525.6958947103.

The spelling of 145279306 in words is "one hundred forty-five million, two hundred seventy-nine thousand, three hundred six".

Divisors: 1 2 271 542 268043 536086 72639653 145279306