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145154933 = 71113732
BaseRepresentation
bin10001010011011…
…10001101110101
3101010010122010122
420221232031311
5244124424213
622223101325
73411540140
oct1051561565
9333118118
10145154933
1174a33060
1240741845
13240c37c1
14153c7057
15cb23d08
hex8a6e375

145154933 has 12 divisors (see below), whose sum is σ = 181104288. Its totient is φ = 113025360.

The previous prime is 145154921. The next prime is 145154951. The reversal of 145154933 is 339451541.

It is not a de Polignac number, because 145154933 - 26 = 145154869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145154893 and 145154902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145154903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105035 + ... + 106407.

It is an arithmetic number, because the mean of its divisors is an integer number (15092024).

Almost surely, 2145154933 is an apocalyptic number.

It is an amenable number.

145154933 is a deficient number, since it is larger than the sum of its proper divisors (35949355).

145154933 is an frugal number, since it uses more digits than its factorization.

145154933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764 (or 1391 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 145154933 is about 12048.0261038894. The cubic root of 145154933 is about 525.5458365361.

The spelling of 145154933 in words is "one hundred forty-five million, one hundred fifty-four thousand, nine hundred thirty-three".

Divisors: 1 7 11 77 1373 9611 15103 105721 1885129 13195903 20736419 145154933