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4048288440 = 2335721412251
BaseRepresentation
bin1111000101001011…
…1111101010111000
3101110010120100201220
43301102333222320
531242330212230
61505412512040
7202214612130
oct36122775270
911403510656
104048288440
111798176029
1294b91b620
134c692aa61
142a5923ac0
1518a612d10
hexf14bfab8

4048288440 has 128 divisors (see below), whose sum is σ = 13892497920. Its totient is φ = 924480000.

The previous prime is 4048288423. The next prime is 4048288441. The reversal of 4048288440 is 448828404.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 4048288392 and 4048288401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4048288441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1797315 + ... + 1799565.

It is an arithmetic number, because the mean of its divisors is an integer number (108535140).

Almost surely, 24048288440 is an apocalyptic number.

4048288440 is a gapful number since it is divisible by the number (40) 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 4048288440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6946248960).

4048288440 is an abundant number, since it is smaller than the sum of its proper divisors (9844209480).

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

4048288440 is a wasteful number, since it uses less digits than its factorization.

4048288440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413 (or 4409 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 42.

The square root of 4048288440 is about 63626.1616003983. The cubic root of 4048288440 is about 1593.7632784438.

The spelling of 4048288440 in words is "four billion, forty-eight million, two hundred eighty-eight thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 2141 2251 4282 4502 6423 6753 8564 9004 10705 11255 12846 13506 14987 15757 17128 18008 21410 22510 25692 27012 29974 31514 32115 33765 42820 44961 45020 47271 51384 54024 59948 63028 64230 67530 74935 78785 85640 89922 90040 94542 119896 126056 128460 135060 149870 157570 179844 189084 224805 236355 256920 270120 299740 315140 359688 378168 449610 472710 599480 630280 899220 945420 1798440 1890840 4819391 9638782 14458173 19277564 24096955 28916346 33735737 38555128 48193910 57832692 67471474 72290865 96387820 101207211 115665384 134942948 144581730 168678685 192775640 202414422 269885896 289163460 337357370 404828844 506036055 578326920 674714740 809657688 1012072110 1349429480 2024144220 4048288440