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4152140 = 2253137181
BaseRepresentation
bin1111110101101101001100
321210221122222
433311231030
52030332030
6224554512
750202236
oct17655514
97727588
104152140
112386623
121482a38
13b24bb5
147a1256
155703e5
hex3f5b4c

4152140 has 48 divisors (see below), whose sum is σ = 9295104. Its totient is φ = 1555200.

The previous prime is 4152139. The next prime is 4152143. The reversal of 4152140 is 412514.

It is not an unprimeable number, because it can be changed into a prime (4152143) 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, 22850 + ... + 23030.

It is an arithmetic number, because the mean of its divisors is an integer number (193648).

Almost surely, 24152140 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 4152140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4647552).

4152140 is an abundant number, since it is smaller than the sum of its proper divisors (5142964).

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

4152140 is a wasteful number, since it uses less digits than its factorization.

4152140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 4152140 is about 2037.6800533941. The cubic root of 4152140 is about 160.7276751220.

Adding to 4152140 its reverse (412514), we get a palindrome (4564654).

The spelling of 4152140 in words is "four million, one hundred fifty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 31 37 62 74 124 148 155 181 185 310 362 370 620 724 740 905 1147 1810 2294 3620 4588 5611 5735 6697 11222 11470 13394 22444 22940 26788 28055 33485 56110 66970 112220 133940 207607 415214 830428 1038035 2076070 4152140