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140274 = 2327793
BaseRepresentation
bin100010001111110010
321010102100
4202033302
513442044
63001230
71122651
oct421762
9233370
10140274
1196432
1269216
134bb04
1439198
152b869
hex223f2

140274 has 12 divisors (see below), whose sum is σ = 303966. Its totient is φ = 46752.

The previous prime is 140269. The next prime is 140281. The reversal of 140274 is 472041.

It is a happy number.

140274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 81225 + 59049 = 285^2 + 243^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7793 = 140274 / (1 + 4 + 0 + 2 + 7 + 4).

It is a Curzon number.

It is a nialpdrome in base 11.

It is an unprimeable number.

140274 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3879 + ... + 3914.

2140274 is an apocalyptic number.

140274 is an abundant number, since it is smaller than the sum of its proper divisors (163692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140274 is a wasteful number, since it uses less digits than its factorization.

140274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7801 (or 7798 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 140274 is about 374.5317076030. The cubic root of 140274 is about 51.9587937857.

It can be divided in two parts, 140 and 274, that added together give a palindrome (414).

The spelling of 140274 in words is "one hundred forty thousand, two hundred seventy-four", and thus it is an iban number.

Divisors: 1 2 3 6 9 18 7793 15586 23379 46758 70137 140274