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140052 = 223111061
BaseRepresentation
bin100010001100010100
321010010010
4202030110
513440202
63000220
71122213
oct421424
9233103
10140052
1196250
1269070
134b993
143907a
152b76c
hex22314

140052 has 24 divisors (see below), whose sum is σ = 356832. Its totient is φ = 42400.

The previous prime is 140009. The next prime is 140053. The reversal of 140052 is 250041.

It is a super-2 number, since 2×1400522 = 39229125408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140053) by changing a digit.

140052 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 7 ways as a sum of consecutive naturals, for example, 399 + ... + 662.

It is an arithmetic number, because the mean of its divisors is an integer number (14868).

2140052 is an apocalyptic number.

140052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140052 is an abundant number, since it is smaller than the sum of its proper divisors (216780).

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

140052 is a wasteful number, since it uses less digits than its factorization.

140052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 140052 is about 374.2352201490. The cubic root of 140052 is about 51.9313690249.

Adding to 140052 its reverse (250041), we get a palindrome (390093).

The spelling of 140052 in words is "one hundred forty thousand, fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1061 2122 3183 4244 6366 11671 12732 23342 35013 46684 70026 140052