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145110531 = 3191253247
BaseRepresentation
bin10001010011000…
…11011000000011
3101010001101020010
420221203120003
5244122014111
622222120003
73411263526
oct1051433003
9333041203
10145110531
1174a02765
1240720003
13240a9527
14153b4bbd
15cb15aa6
hex8a63603

145110531 has 8 divisors (see below), whose sum is σ = 194494464. Its totient is φ = 96233480.

The previous prime is 145110527. The next prime is 145110533. The reversal of 145110531 is 135011541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145110531 - 22 = 145110527 is a prime.

It is a super-2 number, since 2×1451105312 = 42114132414203922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145110498 and 145110507.

It is not an unprimeable number, because it can be changed into a prime (145110533) 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, 126051 + ... + 127196.

It is an arithmetic number, because the mean of its divisors is an integer number (24311808).

Almost surely, 2145110531 is an apocalyptic number.

145110531 is a deficient number, since it is larger than the sum of its proper divisors (49383933).

145110531 is a wasteful number, since it uses less digits than its factorization.

145110531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253441.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 145110531 is about 12046.1832544587. The cubic root of 145110531 is about 525.4922439930.

The spelling of 145110531 in words is "one hundred forty-five million, one hundred ten thousand, five hundred thirty-one".

Divisors: 1 3 191 573 253247 759741 48370177 145110531