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145486 = 21117389
BaseRepresentation
bin100011100001001110
321101120101
4203201032
514123421
63041314
71144105
oct434116
9241511
10145486
119a340
127023a
13512b3
143b03c
152d191
hex2384e

145486 has 16 divisors (see below), whose sum is σ = 252720. Its totient is φ = 62080.

The previous prime is 145477. The next prime is 145487. The reversal of 145486 is 684541.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 42 + 48 + 57 + 83 + 64 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180 + ... + 568.

It is an arithmetic number, because the mean of its divisors is an integer number (15795).

2145486 is an apocalyptic number.

145486 is a deficient number, since it is larger than the sum of its proper divisors (107234).

145486 is a wasteful number, since it uses less digits than its factorization.

145486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419.

The product of its digits is 3840, while the sum is 28.

The square root of 145486 is about 381.4262707261. The cubic root of 145486 is about 52.5945085276.

It can be divided in two parts, 1454 and 86, that added together give a triangular number (1540 = T55).

The spelling of 145486 in words is "one hundred forty-five thousand, four hundred eighty-six".

Divisors: 1 2 11 17 22 34 187 374 389 778 4279 6613 8558 13226 72743 145486