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145260066 = 2373458573
BaseRepresentation
bin10001010100001…
…11111000100010
3101010022222100110
420222013320202
5244141310231
622225232150
73412455510
oct1052077042
9333288313
10145260066
1174aa5046
1240792656
132412c603
14154134b0
15cb45046
hex8a87e22

145260066 has 16 divisors (see below), whose sum is σ = 332023104. Its totient is φ = 41502864.

The previous prime is 145260061. The next prime is 145260067. The reversal of 145260066 is 660062541.

It is a super-2 number, since 2×1452600662 = 42200973548648712, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145260061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729245 + ... + 1729328.

It is an arithmetic number, because the mean of its divisors is an integer number (20751444).

Almost surely, 2145260066 is an apocalyptic number.

145260066 is an abundant number, since it is smaller than the sum of its proper divisors (186763038).

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

145260066 is a wasteful number, since it uses less digits than its factorization.

145260066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458585.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 145260066 is about 12052.3883940072. The cubic root of 145260066 is about 525.6726869188.

The spelling of 145260066 in words is "one hundred forty-five million, two hundred sixty thousand, sixty-six".

Divisors: 1 2 3 6 7 14 21 42 3458573 6917146 10375719 20751438 24210011 48420022 72630033 145260066