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145710580 = 2257285529
BaseRepresentation
bin10001010111101…
…01110111110100
3101011011212100011
420223311313310
5244300214310
622243030004
73416343121
oct1053656764
9334155304
10145710580
1175282574
124096b304
13242596a2
14154cd748
15cbd378a
hex8af5df4

145710580 has 12 divisors (see below), whose sum is σ = 305992260. Its totient is φ = 58284224.

The previous prime is 145710547. The next prime is 145710623. The reversal of 145710580 is 85017541.

It can be written as a sum of positive squares in 2 ways, for example, as 85895824 + 59814756 = 9268^2 + 7734^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3642745 + ... + 3642784.

It is an arithmetic number, because the mean of its divisors is an integer number (25499355).

Almost surely, 2145710580 is an apocalyptic number.

145710580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145710580 is an abundant number, since it is smaller than the sum of its proper divisors (160281680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145710580 is a wasteful number, since it uses less digits than its factorization.

145710580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285538 (or 7285536 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 145710580 is about 12071.0637476570. The cubic root of 145710580 is about 526.2155718342.

The spelling of 145710580 in words is "one hundred forty-five million, seven hundred ten thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 7285529 14571058 29142116 36427645 72855290 145710580