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145394300 = 22521453943
BaseRepresentation
bin10001010101010…
…00101001111100
3101010120210111002
420222220221330
5244210104200
622232145432
73413555042
oct1052505174
9333523432
10145394300
1175086987
1240838278
132417873c
141544a392
15cb6ebd5
hex8aa8a7c

145394300 has 18 divisors (see below), whose sum is σ = 315505848. Its totient is φ = 58157680.

The previous prime is 145394287. The next prime is 145394311. The reversal of 145394300 is 3493541.

It is a super-2 number, since 2×1453943002 = 42279004944980000, 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 (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 726872 + ... + 727071.

Almost surely, 2145394300 is an apocalyptic number.

145394300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145394300 is an abundant number, since it is smaller than the sum of its proper divisors (170111548).

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

145394300 is a wasteful number, since it uses less digits than its factorization.

145394300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453957 (or 1453950 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 145394300 is about 12057.9558798330. The cubic root of 145394300 is about 525.8345607792.

The spelling of 145394300 in words is "one hundred forty-five million, three hundred ninety-four thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1453943 2907886 5815772 7269715 14539430 29078860 36348575 72697150 145394300