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140308143 = 3151309731
BaseRepresentation
bin10000101110011…
…10111010101111
3100210000101120220
420113032322233
5241404330033
621531142423
73322412433
oct1027167257
9323011526
10140308143
1172222648
123aba4a13
13230b7691
14148c49c3
15c4b7bb3
hex85ceeaf

140308143 has 8 divisors (see below), whose sum is σ = 188317056. Its totient is φ = 92919000.

The previous prime is 140308127. The next prime is 140308159. The reversal of 140308143 is 341803041.

It is an interprime number because it is at equal distance from previous prime (140308127) and next prime (140308159).

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

It is not a de Polignac number, because 140308143 - 24 = 140308127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140308193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154413 + ... + 155318.

It is an arithmetic number, because the mean of its divisors is an integer number (23539632).

Almost surely, 2140308143 is an apocalyptic number.

140308143 is a deficient number, since it is larger than the sum of its proper divisors (48008913).

140308143 is a wasteful number, since it uses less digits than its factorization.

140308143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309885.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 140308143 is about 11845.1738273442. The cubic root of 140308143 is about 519.6300907191.

The spelling of 140308143 in words is "one hundred forty million, three hundred eight thousand, one hundred forty-three".

Divisors: 1 3 151 453 309731 929193 46769381 140308143