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2420724400 = 245217933809
BaseRepresentation
bin1001000001001001…
…0101001010110000
320020201000112121021
42100102111022300
514424201140100
61040112305224
7113662550353
oct22022251260
96221015537
102420724400
111032488086
12576842214
132c7693a03
1418d6d629a
15e27bba1a
hex904952b0

2420724400 has 60 divisors (see below), whose sum is σ = 5848453800. Its totient is φ = 962851840.

The previous prime is 2420724391. The next prime is 2420724409. The reversal of 2420724400 is 44270242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2420724391) and next prime (2420724409).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2420724409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54696 + ... + 88504.

It is an arithmetic number, because the mean of its divisors is an integer number (97474230).

Almost surely, 22420724400 is an apocalyptic number.

2420724400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2420724400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2924226900).

2420724400 is an abundant number, since it is smaller than the sum of its proper divisors (3427729400).

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

2420724400 is a wasteful number, since it uses less digits than its factorization.

2420724400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34006 (or 33995 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 2420724400 is about 49200.8577161008. The cubic root of 2420724400 is about 1342.7086371376.

Adding to 2420724400 its reverse (44270242), we get a palindrome (2464994642).

The spelling of 2420724400 in words is "two billion, four hundred twenty million, seven hundred twenty-four thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 179 200 358 400 716 895 1432 1790 2864 3580 4475 7160 8950 14320 17900 33809 35800 67618 71600 135236 169045 270472 338090 540944 676180 845225 1352360 1690450 2704720 3380900 6051811 6761800 12103622 13523600 24207244 30259055 48414488 60518110 96828976 121036220 151295275 242072440 302590550 484144880 605181100 1210362200 2420724400