Search a number
-
+
52840132480 = 275611353487
BaseRepresentation
bin110001001101100001…
…000110111110000000
312001101112000211221201
4301031201012332000
51331204033214410
640135135230544
73550266500242
oct611541067600
9161345024851
1052840132480
1120455971683
12a2a8078454
134ca12abba5
1427b3a00092
151593daa83a
hexc4d846f80

52840132480 has 64 divisors (see below), whose sum is σ = 128391871680. Its totient is φ = 20789544960.

The previous prime is 52840132441. The next prime is 52840132483. The reversal of 52840132480 is 8423104825.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52840132483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637704 + ... + 715783.

It is an arithmetic number, because the mean of its divisors is an integer number (2006122995).

Almost surely, 252840132480 is an apocalyptic number.

It is an amenable number.

52840132480 is an abundant number, since it is smaller than the sum of its proper divisors (75551739200).

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

52840132480 is a wasteful number, since it uses less digits than its factorization.

52840132480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353567 (or 1353555 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The spelling of 52840132480 in words is "fifty-two billion, eight hundred forty million, one hundred thirty-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 61 64 80 122 128 160 244 305 320 488 610 640 976 1220 1952 2440 3904 4880 7808 9760 19520 39040 1353487 2706974 5413948 6767435 10827896 13534870 21655792 27069740 43311584 54139480 82562707 86623168 108278960 165125414 173246336 216557920 330250828 412813535 433115840 660501656 825627070 866231680 1321003312 1651254140 2642006624 3302508280 5284013248 6605016560 10568026496 13210033120 26420066240 52840132480