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1012241440 = 25578310889
BaseRepresentation
bin111100010101011…
…001010000100000
32121112201012012201
4330111121100200
54033113211230
6244235502544
734040624140
oct7425312040
92545635181
101012241440
1147a424a81
12242bb7a54
13131935042
1498616920
155dced5ca
hex3c559420

1012241440 has 96 divisors (see below), whose sum is σ = 2766234240. Its totient is φ = 342841344.

The previous prime is 1012241413. The next prime is 1012241441. The reversal of 1012241440 is 441422101.

It is not an unprimeable number, because it can be changed into a prime (1012241441) 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, 87516 + ... + 98404.

It is an arithmetic number, because the mean of its divisors is an integer number (28814940).

Almost surely, 21012241440 is an apocalyptic number.

1012241440 is a gapful number since it is divisible by the number (10) 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 1012241440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383117120).

1012241440 is an abundant number, since it is smaller than the sum of its proper divisors (1753992800).

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

1012241440 is a wasteful number, since it uses less digits than its factorization.

1012241440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10994 (or 10986 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1012241440 is about 31815.7420155495. The cubic root of 1012241440 is about 1004.0639420026.

Adding to 1012241440 its reverse (441422101), we get a palindrome (1453663541).

The spelling of 1012241440 in words is "one billion, twelve million, two hundred forty-one thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 83 112 140 160 166 224 280 332 415 560 581 664 830 1120 1162 1328 1660 2324 2656 2905 3320 4648 5810 6640 9296 10889 11620 13280 18592 21778 23240 43556 46480 54445 76223 87112 92960 108890 152446 174224 217780 304892 348448 381115 435560 609784 762230 871120 903787 1219568 1524460 1742240 1807574 2439136 3048920 3615148 4518935 6097840 6326509 7230296 9037870 12195680 12653018 14460592 18075740 25306036 28921184 31632545 36151480 50612072 63265090 72302960 101224144 126530180 144605920 202448288 253060360 506120720 1012241440