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5513501540 = 2251726771409
BaseRepresentation
bin1010010001010000…
…10101101101100100
3112020020121220020202
411020220111231210
542242424022130
62311033250032
7253425663341
oct51050255544
915206556222
105513501540
11237a256348
12109a563918
1369b360261
143a436d7c8
1522408a145
hex148a15b64

5513501540 has 72 divisors (see below), whose sum is σ = 12326406120. Its totient is φ = 2071134208.

The previous prime is 5513501533. The next prime is 5513501551. The reversal of 5513501540 is 451053155.

It can be written as a sum of positive squares in 12 ways, for example, as 123298816 + 5390202724 = 11104^2 + 73418^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3912356 + ... + 3913764.

It is an arithmetic number, because the mean of its divisors is an integer number (171200085).

Almost surely, 25513501540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5513501540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6163203060).

5513501540 is an abundant number, since it is smaller than the sum of its proper divisors (6812904580).

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

5513501540 is a wasteful number, since it uses less digits than its factorization.

5513501540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 5513501540 is about 74252.9564394577. The cubic root of 5513501540 is about 1766.6173855167.

Adding to 5513501540 its reverse (451053155), we get a palindrome (5964554695).

The spelling of 5513501540 in words is "five billion, five hundred thirteen million, five hundred one thousand, five hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 289 340 578 677 1156 1354 1409 1445 2708 2818 2890 3385 5636 5780 6770 7045 11509 13540 14090 23018 23953 28180 46036 47906 57545 95812 115090 119765 195653 230180 239530 391306 407201 479060 782612 814402 953893 978265 1628804 1907786 1956530 2036005 3815572 3913060 4072010 4769465 8144020 9538930 16216181 19077860 32432362 64864724 81080905 162161810 275675077 324323620 551350154 1102700308 1378375385 2756750770 5513501540