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140201215 = 57112371223
BaseRepresentation
bin10000101101101…
…00110011111111
3100202210221220121
420112310303333
5241342414330
621524555411
73321455620
oct1026646377
9322727817
10140201215
117215a280
123ab52b67
132307aacb
1414897a47
15c49617a
hex85b4cff

140201215 has 64 divisors (see below), whose sum is σ = 222953472. Its totient is φ = 82051200.

The previous prime is 140201203. The next prime is 140201219. The reversal of 140201215 is 512102041.

It is not a de Polignac number, because 140201215 - 213 = 140193023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140201219) 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 63 ways as a sum of consecutive naturals, for example, 628594 + ... + 628816.

It is an arithmetic number, because the mean of its divisors is an integer number (3483648).

Almost surely, 2140201215 is an apocalyptic number.

140201215 is a deficient number, since it is larger than the sum of its proper divisors (82752257).

140201215 is a wasteful number, since it uses less digits than its factorization.

140201215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 140201215 is about 11840.6593988680. The cubic root of 140201215 is about 519.4980548399.

Adding to 140201215 its reverse (512102041), we get a palindrome (652303256).

The spelling of 140201215 in words is "one hundred forty million, two hundred one thousand, two hundred fifteen".

Divisors: 1 5 7 11 23 35 55 71 77 115 161 223 253 355 385 497 781 805 1115 1265 1561 1633 1771 2453 2485 3905 5129 5467 7805 8165 8855 11431 12265 15833 17171 17963 25645 27335 35903 56419 57155 79165 85855 89815 110831 125741 174163 179515 282095 364159 394933 554155 628705 870815 1219141 1820795 1974665 2549113 4005749 6095705 12745565 20028745 28040243 140201215