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3132140 = 2251123619
BaseRepresentation
bin1011111100101011101100
312220010111012
423330223230
51300212030
6151044352
735423414
oct13745354
95803435
103132140
11184a250
1210706b8
1385884b
145b7644
1541d095
hex2fcaec

3132140 has 48 divisors (see below), whose sum is σ = 7499520. Its totient is φ = 1087680.

The previous prime is 3132139. The next prime is 3132149. The reversal of 3132140 is 412313.

Added to its reverse (412313) it gives a triangular number (3544453 = T2662).

It is not an unprimeable number, because it can be changed into a prime (3132149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4751 + ... + 5369.

It is an arithmetic number, because the mean of its divisors is an integer number (156240).

Almost surely, 23132140 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 3132140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749760).

3132140 is an abundant number, since it is smaller than the sum of its proper divisors (4367380).

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

3132140 is a wasteful number, since it uses less digits than its factorization.

3132140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3132140 is about 1769.7852977127. The cubic root of 3132140 is about 146.3121488120.

Adding to 3132140 its reverse (412313), we get a palindrome (3544453).

The spelling of 3132140 in words is "three million, one hundred thirty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 23 44 46 55 92 110 115 220 230 253 460 506 619 1012 1238 1265 2476 2530 3095 5060 6190 6809 12380 13618 14237 27236 28474 34045 56948 68090 71185 136180 142370 156607 284740 313214 626428 783035 1566070 3132140