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140679 = 32721129
BaseRepresentation
bin100010010110000111
321010222100
4202112013
514000204
63003143
71124100
oct422607
9233870
10140679
1196770
12694b3
134c056
14393a7
152ba39
hex22587

140679 has 36 divisors (see below), whose sum is σ = 266760. Its totient is φ = 70560.

The previous prime is 140677. The next prime is 140681. The reversal of 140679 is 976041.

It is an interprime number because it is at equal distance from previous prime (140677) and next prime (140681).

It is not a de Polignac number, because 140679 - 21 = 140677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140677) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4837 + ... + 4865.

It is an arithmetic number, because the mean of its divisors is an integer number (7410).

2140679 is an apocalyptic number.

140679 is a deficient number, since it is larger than the sum of its proper divisors (126081).

140679 is a wasteful number, since it uses less digits than its factorization.

140679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 140679 is about 375.0719930893. The cubic root of 140679 is about 52.0087509927.

It can be divided in two parts, 1406 and 79, that added together give a triangular number (1485 = T54).

The spelling of 140679 in words is "one hundred forty thousand, six hundred seventy-nine".

Divisors: 1 3 7 9 11 21 29 33 49 63 77 87 99 147 203 231 261 319 441 539 609 693 957 1421 1617 1827 2233 2871 4263 4851 6699 12789 15631 20097 46893 140679