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531052028428285 = 57131167147315227
BaseRepresentation
bin111100010111111010010111…
…1100000101111111111111101
32120122022002002221100211112001
41320233310233200233333331
51024101224023234201120
65121241533421142301
7216600146215552030
oct17057645740577775
92518262087324461
10531052028428285
1114423399a605a81
124b6895359ba991
1319a41cb715a2c0
14951d0abb19017
15415dd3690de0a
hex1e2fd2f82fffd

531052028428285 has 16 divisors (see below), whose sum is σ = 784322995833216. Its totient is φ = 336138426785088.

The previous prime is 531052028428241. The next prime is 531052028428289. The reversal of 531052028428285 is 582824820250135.

It is a cyclic number.

It is not a de Polignac number, because 531052028428285 - 217 = 531052028297213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531052028428289) 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, 583573657159 + ... + 583573658068.

It is an arithmetic number, because the mean of its divisors is an integer number (49020187239576).

Almost surely, 2531052028428285 is an apocalyptic number.

It is an amenable number.

531052028428285 is a deficient number, since it is larger than the sum of its proper divisors (253270967404931).

531052028428285 is a wasteful number, since it uses less digits than its factorization.

531052028428285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167147315252.

The product of its (nonzero) digits is 12288000, while the sum is 55.

The spelling of 531052028428285 in words is "five hundred thirty-one trillion, fifty-two billion, twenty-eight million, four hundred twenty-eight thousand, two hundred eighty-five".

Divisors: 1 5 7 13 35 65 91 455 1167147315227 5835736576135 8170031206589 15172915097951 40850156032945 75864575489755 106210405685657 531052028428285