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140254311 = 3616591163
BaseRepresentation
bin10000101110000…
…01110001100111
3100202220122202010
420113001301213
5241401114221
621530045303
73322066461
oct1027016147
9322818663
10140254311
117219615a
123ab79833
1323099022
14148ad131
15c4a6c76
hex85c1c67

140254311 has 16 divisors (see below), whose sum is σ = 190523520. Its totient is φ = 91751520.

The previous prime is 140254307. The next prime is 140254327. The reversal of 140254311 is 113452041.

It is not a de Polignac number, because 140254311 - 22 = 140254307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140254351) by changing a digit.

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, 120016 + ... + 121178.

It is an arithmetic number, because the mean of its divisors is an integer number (11907720).

Almost surely, 2140254311 is an apocalyptic number.

140254311 is a deficient number, since it is larger than the sum of its proper divisors (50269209).

140254311 is a wasteful number, since it uses less digits than its factorization.

140254311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 140254311 is about 11842.9012914910. The cubic root of 140254311 is about 519.5636267571.

It can be divided in two parts, 14025 and 4311, that added together give a triangular number (18336 = T191).

The spelling of 140254311 in words is "one hundred forty million, two hundred fifty-four thousand, three hundred eleven".

Divisors: 1 3 61 183 659 1163 1977 3489 40199 70943 120597 212829 766417 2299251 46751437 140254311