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145512532 = 221127711939
BaseRepresentation
bin10001010110001…
…01100001010100
3101010210210200001
420223011201110
5244222400112
622234501044
73414556534
oct1053054124
9333723601
10145512532
11751577a0
1240894784
13241ba4b9
141547b4c4
15cb94c57
hex8ac5854

145512532 has 24 divisors (see below), whose sum is σ = 278822880. Its totient is φ = 65897760.

The previous prime is 145512457. The next prime is 145512533. The reversal of 145512532 is 235215541.

It is a self number, because there is not a number n which added to its sum of digits gives 145512532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145512533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6219 + ... + 18157.

It is an arithmetic number, because the mean of its divisors is an integer number (11617620).

Almost surely, 2145512532 is an apocalyptic number.

It is an amenable number.

145512532 is a deficient number, since it is larger than the sum of its proper divisors (133310348).

145512532 is a wasteful number, since it uses less digits than its factorization.

145512532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12231 (or 12229 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 145512532 is about 12062.8575387426. The cubic root of 145512532 is about 525.9770551948.

The spelling of 145512532 in words is "one hundred forty-five million, five hundred twelve thousand, five hundred thirty-two".

Divisors: 1 2 4 11 22 44 277 554 1108 3047 6094 11939 12188 23878 47756 131329 262658 525316 3307103 6614206 13228412 36378133 72756266 145512532