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145086800 = 2452362717
BaseRepresentation
bin10001010010111…
…01100101010000
3101010000011200012
420221131211100
5244120234200
622221414052
73411134405
oct1051354520
9333004605
10145086800
1174996951
124070a328
132409b7a1
14153aa2ac
15cb0da35
hex8a5d950

145086800 has 30 divisors (see below), whose sum is σ = 348571998. Its totient is φ = 58034560.

The previous prime is 145086769. The next prime is 145086863. The reversal of 145086800 is 8680541.

It can be written as a sum of positive squares in 3 ways, for example, as 23116864 + 121969936 = 4808^2 + 11044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180959 + ... + 181758.

Almost surely, 2145086800 is an apocalyptic number.

145086800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145086800 is an abundant number, since it is smaller than the sum of its proper divisors (203485198).

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

145086800 is a wasteful number, since it uses less digits than its factorization.

145086800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362735 (or 362724 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 145086800 is about 12045.1982133961. The cubic root of 145086800 is about 525.4635965516.

The spelling of 145086800 in words is "one hundred forty-five million, eighty-six thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 362717 725434 1450868 1813585 2901736 3627170 5803472 7254340 9067925 14508680 18135850 29017360 36271700 72543400 145086800