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145046655 = 32513247943
BaseRepresentation
bin10001010010100…
…11110001111111
3101002221010121100
420221103301333
5244112443110
622220504143
73410606355
oct1051236177
9332833540
10145046655
1174969776
12406ab053
1324086430
14153997d5
15cb01bc0
hex8a53c7f

145046655 has 24 divisors (see below), whose sum is σ = 270754848. Its totient is φ = 71407296.

The previous prime is 145046651. The next prime is 145046677. The reversal of 145046655 is 556640541.

145046655 is a `hidden beast` number, since 145 + 0 + 466 + 55 = 666.

It is not a de Polignac number, because 145046655 - 22 = 145046651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145046651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123387 + ... + 124556.

It is an arithmetic number, because the mean of its divisors is an integer number (11281452).

Almost surely, 2145046655 is an apocalyptic number.

145046655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145046655 is a deficient number, since it is larger than the sum of its proper divisors (125708193).

145046655 is a wasteful number, since it uses less digits than its factorization.

145046655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247967 (or 247964 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 145046655 is about 12043.5316664175. The cubic root of 145046655 is about 525.4151274467.

The spelling of 145046655 in words is "one hundred forty-five million, forty-six thousand, six hundred fifty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 247943 743829 1239715 2231487 3223259 3719145 9669777 11157435 16116295 29009331 48348885 145046655