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145122532 = 22193121987
BaseRepresentation
bin10001010011001…
…10010011100100
3101010001222200121
420221212103210
5244122410112
622222251324
73411343522
oct1051462344
9333058617
10145122532
1174a10785
1240726b44
13240b1b29
14153b9312
15cb19407
hex8a664e4

145122532 has 36 divisors (see below), whose sum is σ = 276371760. Its totient is φ = 66491280.

The previous prime is 145122521. The next prime is 145122539. The reversal of 145122532 is 235221541.

It is a junction number, because it is equal to n+sod(n) for n = 145122497 and 145122506.

It is not an unprimeable number, because it can be changed into a prime (145122539) 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, 72043 + ... + 74029.

Almost surely, 2145122532 is an apocalyptic number.

It is an amenable number.

145122532 is a deficient number, since it is larger than the sum of its proper divisors (131249228).

145122532 is a wasteful number, since it uses less digits than its factorization.

145122532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072 (or 2039 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 145122532 is about 12046.6813687422. The cubic root of 145122532 is about 525.5067300966.

Subtracting 145122532 from its reverse (235221541), we obtain a palindrome (90099009).

The spelling of 145122532 in words is "one hundred forty-five million, one hundred twenty-two thousand, five hundred thirty-two".

Divisors: 1 2 4 19 31 38 62 76 124 589 961 1178 1922 1987 2356 3844 3974 7948 18259 36518 37753 61597 73036 75506 123194 151012 246388 1170343 1909507 2340686 3819014 4681372 7638028 36280633 72561266 145122532