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2501115420 = 223585348869
BaseRepresentation
bin1001010100010011…
…1111111000011100
320110022021211100110
42111010333320130
520110241143140
61052103330020
7115660062456
oct22504777034
96408254313
102501115420
1110738a6041
12599750910
1330b23006b
1419a2612d6
15e989b380
hex9513fe1c

2501115420 has 48 divisors (see below), whose sum is σ = 7011476640. Its totient is φ = 666168576.

The previous prime is 2501115403. The next prime is 2501115439. The reversal of 2501115420 is 245111052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26746 + ... + 75614.

It is an arithmetic number, because the mean of its divisors is an integer number (146072430).

Almost surely, 22501115420 is an apocalyptic number.

2501115420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2501115420 is an abundant number, since it is smaller than the sum of its proper divisors (4510361220).

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

2501115420 is a wasteful number, since it uses less digits than its factorization.

2501115420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49734 (or 49732 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2501115420 is about 50011.1529561157. The cubic root of 2501115420 is about 1357.4106259988.

Adding to 2501115420 its reverse (245111052), we get a palindrome (2746226472).

The spelling of 2501115420 in words is "two billion, five hundred one million, one hundred fifteen thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 853 1706 2559 3412 4265 5118 8530 10236 12795 17060 25590 48869 51180 97738 146607 195476 244345 293214 488690 586428 733035 977380 1466070 2932140 41685257 83370514 125055771 166741028 208426285 250111542 416852570 500223084 625278855 833705140 1250557710 2501115420