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145461406 = 273996311
BaseRepresentation
bin10001010101110…
…01000010011110
3101010201012112111
420222321002132
5244214231111
622233424234
73414254506
oct1052710236
9333635474
10145461406
1175122342
124086b07a
13241a014c
1415466a06
15cb84a21
hex8ab909e

145461406 has 8 divisors (see below), whose sum is σ = 221181264. Its totient is φ = 71734320.

The previous prime is 145461403. The next prime is 145461409. The reversal of 145461406 is 604164541.

It is an interprime number because it is at equal distance from previous prime (145461403) and next prime (145461409).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145461403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498010 + ... + 498301.

It is an arithmetic number, because the mean of its divisors is an integer number (27647658).

Almost surely, 2145461406 is an apocalyptic number.

145461406 is a deficient number, since it is larger than the sum of its proper divisors (75719858).

145461406 is an equidigital number, since it uses as much as digits as its factorization.

145461406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996386.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 145461406 is about 12060.7382029460. The cubic root of 145461406 is about 525.9154470924.

The spelling of 145461406 in words is "one hundred forty-five million, four hundred sixty-one thousand, four hundred six".

Divisors: 1 2 73 146 996311 1992622 72730703 145461406