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145143524 = 22232117477
BaseRepresentation
bin10001010011010…
…11011011100100
3101010010001111002
420221223123210
5244124043044
622222532432
73411461651
oct1051533344
9333101432
10145143524
1174a25529
1240737118
13240bb556
14153c2c28
15cb2074e
hex8a6b6e4

145143524 has 24 divisors (see below), whose sum is σ = 266336448. Its totient is φ = 69078240.

The previous prime is 145143469. The next prime is 145143571. The reversal of 145143524 is 425341541.

145143524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 15674 + ... + 23150.

It is an arithmetic number, because the mean of its divisors is an integer number (11097352).

Almost surely, 2145143524 is an apocalyptic number.

It is an amenable number.

145143524 is a deficient number, since it is larger than the sum of its proper divisors (121192924).

145143524 is a wasteful number, since it uses less digits than its factorization.

145143524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715 (or 7713 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 145143524 is about 12047.5526145355. The cubic root of 145143524 is about 525.5320670889.

The spelling of 145143524 in words is "one hundred forty-five million, one hundred forty-three thousand, five hundred twenty-four".

Divisors: 1 2 4 23 46 92 211 422 844 4853 7477 9706 14954 19412 29908 171971 343942 687884 1577647 3155294 6310588 36285881 72571762 145143524