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145023210620 = 22521647334973
BaseRepresentation
bin1000011100010000001…
…1101001010001111100
3111212022220202102021222
42013010003221101330
54334001420214440
6150342302412512
713322544644141
oct2070403512174
9455286672258
10145023210620
115655a904682
1224133b91138
13108a2489482
14703a8123c8
153b8bc102b5
hex21c40e947c

145023210620 has 24 divisors (see below), whose sum is σ = 304563720384. Its totient is φ = 58006431296.

The previous prime is 145023210587. The next prime is 145023210671. The reversal of 145023210620 is 26012320541.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 145023210620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265454 + ... + 600426.

It is an arithmetic number, because the mean of its divisors is an integer number (12690155016).

Almost surely, 2145023210620 is an apocalyptic number.

145023210620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145023210620 is an abundant number, since it is smaller than the sum of its proper divisors (159540509764).

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

145023210620 is a wasteful number, since it uses less digits than its factorization.

145023210620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356629 (or 356627 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 145023210620 in words is "one hundred forty-five billion, twenty-three million, two hundred ten thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 21647 43294 86588 108235 216470 334973 432940 669946 1339892 1674865 3349730 6699460 7251160531 14502321062 29004642124 36255802655 72511605310 145023210620