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40120060 = 22513115313
BaseRepresentation
bin1001100100001…
…0111011111100
32210111022101011
42121002323330
540232320220
63551525004
7665005051
oct231027374
983438334
1040120060
1120712882
1211529764
1384093a6
145485028
1537c765a
hex2642efc

40120060 has 24 divisors (see below), whose sum is σ = 84900816. Its totient is φ = 15924480.

The previous prime is 40120057. The next prime is 40120063. The reversal of 40120060 is 6002104.

It is an interprime number because it is at equal distance from previous prime (40120057) and next prime (40120063).

It is a self number, because there is not a number n which added to its sum of digits gives 40120060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40120063) 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, 5037 + ... + 10276.

It is an arithmetic number, because the mean of its divisors is an integer number (3537534).

Almost surely, 240120060 is an apocalyptic number.

It is an amenable number.

40120060 is an abundant number, since it is smaller than the sum of its proper divisors (44780756).

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

40120060 is a wasteful number, since it uses less digits than its factorization.

40120060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15453 (or 15451 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40120060 is about 6334.0397851608. The cubic root of 40120060 is about 342.3370137547.

Adding to 40120060 its reverse (6002104), we get a palindrome (46122164).

The spelling of 40120060 in words is "forty million, one hundred twenty thousand, sixty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 15313 30626 61252 76565 153130 306260 2006003 4012006 8024012 10030015 20060030 40120060