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145392726 = 2324232121
BaseRepresentation
bin10001010101010…
…00010001010110
3101010120201022210
420222220101112
5244210031401
622232134250
73413550333
oct1052502126
9333521283
10145392726
1175085786
1240837386
1324177acb
141544998a
15cb6e4d6
hex8aa8456

145392726 has 8 divisors (see below), whose sum is σ = 290785464. Its totient is φ = 48464240.

The previous prime is 145392703. The next prime is 145392739. The reversal of 145392726 is 627293541.

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

145392726 is an admirable number.

It is a super-2 number, since 2×1453927262 = 42278089547422152, 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12116055 + ... + 12116066.

It is an arithmetic number, because the mean of its divisors is an integer number (36348183).

Almost surely, 2145392726 is an apocalyptic number.

145392726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145392726 is a wasteful number, since it uses less digits than its factorization.

145392726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24232126.

The product of its digits is 90720, while the sum is 39.

The square root of 145392726 is about 12057.8906115456. The cubic root of 145392726 is about 525.8326632574.

The spelling of 145392726 in words is "one hundred forty-five million, three hundred ninety-two thousand, seven hundred twenty-six".

Divisors: 1 2 3 6 24232121 48464242 72696363 145392726