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5161310240 = 255731632711
BaseRepresentation
bin1001100111010001…
…10101100000100000
3111022200220201121112
410303220311200200
541032243411430
62212052442452
7241621261502
oct46350654040
914280821545
105161310240
112209474859
121000619428
136433ba838
1436d691d72
152031bc195
hex133a35820

5161310240 has 96 divisors (see below), whose sum is σ = 12441050496. Its totient is φ = 2023004160.

The previous prime is 5161310237. The next prime is 5161310243. The reversal of 5161310240 is 420131615.

It is an interprime number because it is at equal distance from previous prime (5161310237) and next prime (5161310243).

It is not an unprimeable number, because it can be changed into a prime (5161310243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1902485 + ... + 1905195.

It is an arithmetic number, because the mean of its divisors is an integer number (129594276).

Almost surely, 25161310240 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 5161310240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6220525248).

5161310240 is an abundant number, since it is smaller than the sum of its proper divisors (7279740256).

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

5161310240 is a wasteful number, since it uses less digits than its factorization.

5161310240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962 (or 2954 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 5161310240 is about 71842.2594299483. The cubic root of 5161310240 is about 1728.1707685886.

Adding to 5161310240 its reverse (420131615), we get a palindrome (5581441855).

The spelling of 5161310240 in words is "five billion, one hundred sixty-one million, three hundred ten thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 73 80 146 160 163 292 326 365 584 652 730 815 1168 1304 1460 1630 2336 2608 2711 2920 3260 5216 5422 5840 6520 10844 11680 11899 13040 13555 21688 23798 26080 27110 43376 47596 54220 59495 86752 95192 108440 118990 190384 197903 216880 237980 380768 395806 433760 441893 475960 791612 883786 951920 989515 1583224 1767572 1903840 1979030 2209465 3166448 3535144 3958060 4418930 6332896 7070288 7916120 8837860 14140576 15832240 17675720 31664480 32258189 35351440 64516378 70702880 129032756 161290945 258065512 322581890 516131024 645163780 1032262048 1290327560 2580655120 5161310240