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143545020 = 223517313829
BaseRepresentation
bin10001000111001…
…01001010111100
3101000002211202020
420203211022330
5243221420040
622124400140
73362053413
oct1043451274
9330084666
10143545020
1174033553
12400a6050
132397baa8
14150c847a
15c906cd0
hex88e52bc

143545020 has 48 divisors (see below), whose sum is σ = 404278560. Its totient is φ = 38054656.

The previous prime is 143545013. The next prime is 143545033. The reversal of 143545020 is 20545341.

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 15 ways as a sum of consecutive naturals, for example, 3466 + ... + 17294.

It is an arithmetic number, because the mean of its divisors is an integer number (8422470).

Almost surely, 2143545020 is an apocalyptic number.

143545020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143545020 is an abundant number, since it is smaller than the sum of its proper divisors (260733540).

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

143545020 is a wasteful number, since it uses less digits than its factorization.

143545020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14014 (or 14012 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 143545020 is about 11981.0275018464. The cubic root of 143545020 is about 523.5956663688.

The spelling of 143545020 in words is "one hundred forty-three million, five hundred forty-five thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 173 346 519 692 865 1038 1730 2076 2595 3460 5190 10380 13829 27658 41487 55316 69145 82974 138290 165948 207435 276580 414870 829740 2392417 4784834 7177251 9569668 11962085 14354502 23924170 28709004 35886255 47848340 71772510 143545020