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9123485145 = 351270347881
BaseRepresentation
bin10000111111100110…
…10101010111011001
3212112211110001210020
420133303111113121
5122141103011040
64105151541053
7442042226025
oct103763252731
925484401706
109123485145
113961a73475
12192752a789
13b25227628
1462799b385
15385e6ecd0
hex21fcd55d9

9123485145 has 16 divisors (see below), whose sum is σ = 14599030272. Its totient is φ = 4865374080.

The previous prime is 9123485143. The next prime is 9123485153. The reversal of 9123485145 is 5415843219.

It is not a de Polignac number, because 9123485145 - 21 = 9123485143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9123485097 and 9123485106.

It is not an unprimeable number, because it can be changed into a prime (9123485143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166605 + ... + 214485.

It is an arithmetic number, because the mean of its divisors is an integer number (912439392).

Almost surely, 29123485145 is an apocalyptic number.

It is an amenable number.

9123485145 is a deficient number, since it is larger than the sum of its proper divisors (5475545127).

9123485145 is a wasteful number, since it uses less digits than its factorization.

9123485145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60592.

The product of its digits is 172800, while the sum is 42.

The square root of 9123485145 is about 95516.9364301431. The cubic root of 9123485145 is about 2089.5539553914.

The spelling of 9123485145 in words is "nine billion, one hundred twenty-three million, four hundred eighty-five thousand, one hundred forty-five".

Divisors: 1 3 5 15 12703 38109 47881 63515 143643 190545 239405 718215 608232343 1824697029 3041161715 9123485145