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145429200 = 243252729199
BaseRepresentation
bin10001010101100…
…01001011010000
3101010122120100200
420222301023100
5244212213300
622233015200
73414061560
oct1052611320
9333576320
10145429200
1175100124
1240854500
132418b5a7
1415458da0
15cb7a200
hex8ab12d0

145429200 has 360 divisors, whose sum is σ = 599664000. Its totient is φ = 31933440.

The previous prime is 145429189. The next prime is 145429223. The reversal of 145429200 is 2924541.

145429200 is a `hidden beast` number, since 1 + 454 + 2 + 9 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×1454292002 = 42299304425280000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 730701 + ... + 730899.

Almost surely, 2145429200 is an apocalyptic number.

145429200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145429200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299832000).

145429200 is an abundant number, since it is smaller than the sum of its proper divisors (454234800).

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

145429200 is a wasteful number, since it uses less digits than its factorization.

145429200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 145429200 is about 12059.4029702967. The cubic root of 145429200 is about 525.8766306495.

The spelling of 145429200 in words is "one hundred forty-five million, four hundred twenty-nine thousand, two hundred".