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143013040 = 2451787663
BaseRepresentation
bin10001000011000…
…11010010110000
3100222002211000021
420201203102300
5243102404130
622105133224
73354406432
oct1041432260
9328084007
10143013040
11737aa8a5
123ba8a214
1323823901
1414dca652
15c84e37a
hex88634b0

143013040 has 20 divisors (see below), whose sum is σ = 332505504. Its totient is φ = 57205184.

The previous prime is 143013001. The next prime is 143013083. The reversal of 143013040 is 40310341.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1430130402 = 40905459220083200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893752 + ... + 893911.

Almost surely, 2143013040 is an apocalyptic number.

143013040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143013040 is an abundant number, since it is smaller than the sum of its proper divisors (189492464).

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

143013040 is a wasteful number, since it uses less digits than its factorization.

143013040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787676 (or 1787670 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 143013040 is about 11958.8059604628. The cubic root of 143013040 is about 522.9480478796.

Adding to 143013040 its reverse (40310341), we get a palindrome (183323381).

The spelling of 143013040 in words is "one hundred forty-three million, thirteen thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1787663 3575326 7150652 8938315 14301304 17876630 28602608 35753260 71506520 143013040