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145434130 = 2529217293
BaseRepresentation
bin10001010101100…
…10011000010010
3101010122211010021
420222302120102
5244212343010
622233054054
73414112132
oct1052623022
9333584107
10145434130
11751038a6
124085732a
13241908ca
141545aac2
15cb7b8da
hex8ab2612

145434130 has 24 divisors (see below), whose sum is σ = 271135332. Its totient is φ = 56164416.

The previous prime is 145434103. The next prime is 145434143. The reversal of 145434130 is 31434541.

It can be written as a sum of positive squares in 6 ways, for example, as 27342441 + 118091689 = 5229^2 + 10867^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145434095 and 145434104.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 237 + ... + 17056.

Almost surely, 2145434130 is an apocalyptic number.

145434130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145434130 is a deficient number, since it is larger than the sum of its proper divisors (125701202).

145434130 is a wasteful number, since it uses less digits than its factorization.

145434130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17358 (or 17329 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 145434130 is about 12059.6073733766. The cubic root of 145434130 is about 525.8825729281.

Adding to 145434130 its reverse (31434541), we get a palindrome (176868671).

The spelling of 145434130 in words is "one hundred forty-five million, four hundred thirty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 841 1682 4205 8410 17293 34586 86465 172930 501497 1002994 2507485 5014970 14543413 29086826 72717065 145434130