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60140 = 2253197
BaseRepresentation
bin1110101011101100
310001111102
432223230
53411030
61142232
7340223
oct165354
9101442
1060140
1141203
122a978
13214b2
1417cba
1512c45
hexeaec

60140 has 24 divisors (see below), whose sum is σ = 131712. Its totient is φ = 23040.

The previous prime is 60139. The next prime is 60149. The reversal of 60140 is 4106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572 + ... + 668.

It is an arithmetic number, because the mean of its divisors is an integer number (5488).

260140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65856).

60140 is an abundant number, since it is smaller than the sum of its proper divisors (71572).

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

60140 is a wasteful number, since it uses less digits than its factorization.

60140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 60140 is about 245.2345815745. The cubic root of 60140 is about 39.1791017304.

Adding to 60140 its reverse (4106), we get a palindrome (64246).

The spelling of 60140 in words is "sixty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 31 62 97 124 155 194 310 388 485 620 970 1940 3007 6014 12028 15035 30070 60140