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145232355 = 3521145887
BaseRepresentation
bin10001010100000…
…01000111100011
3101010021120100010
420222001013203
5244134413410
622224500003
73412311642
oct1052010743
9333246303
10145232355
1174a86244
124077a603
132411cb08
1415407359
15cb3bc20
hex8a811e3

145232355 has 16 divisors (see below), whose sum is σ = 233478144. Its totient is φ = 77088480.

The previous prime is 145232317. The next prime is 145232357. The reversal of 145232355 is 553232541.

It is not a de Polignac number, because 145232355 - 29 = 145231843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145232357) 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 15 ways as a sum of consecutive naturals, for example, 19779 + ... + 26108.

It is an arithmetic number, because the mean of its divisors is an integer number (14592384).

Almost surely, 2145232355 is an apocalyptic number.

145232355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145232355 is a deficient number, since it is larger than the sum of its proper divisors (88245789).

145232355 is a wasteful number, since it uses less digits than its factorization.

145232355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46106.

The product of its digits is 18000, while the sum is 30.

The square root of 145232355 is about 12051.2387330100. The cubic root of 145232355 is about 525.6392575838.

Adding to 145232355 its reverse (553232541), we get a palindrome (698464896).

The spelling of 145232355 in words is "one hundred forty-five million, two hundred thirty-two thousand, three hundred fifty-five".

Divisors: 1 3 5 15 211 633 1055 3165 45887 137661 229435 688305 9682157 29046471 48410785 145232355