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143872001 = 7131581011
BaseRepresentation
bin10001001001101…
…01000000000001
3101000201110021122
420210311000001
5243312401001
622135402025
73364614620
oct1044650001
9330643248
10143872001
1174237189
1240223315
1323a64880
14151716b7
15c96db1b
hex8935001

143872001 has 8 divisors (see below), whose sum is σ = 177073344. Its totient is φ = 113832720.

The previous prime is 143871997. The next prime is 143872007. The reversal of 143872001 is 100278341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143872001 - 22 = 143871997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143872007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790415 + ... + 790596.

It is an arithmetic number, because the mean of its divisors is an integer number (22134168).

Almost surely, 2143872001 is an apocalyptic number.

It is an amenable number.

143872001 is a deficient number, since it is larger than the sum of its proper divisors (33201343).

143872001 is a wasteful number, since it uses less digits than its factorization.

143872001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581031.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 143872001 is about 11994.6655226396. The cubic root of 143872001 is about 523.9929308236.

The spelling of 143872001 in words is "one hundred forty-three million, eight hundred seventy-two thousand, one".

Divisors: 1 7 13 91 1581011 11067077 20553143 143872001