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52618005 = 3551131127
BaseRepresentation
bin1100100010111…
…0001100010101
310200000021100000
43020232030111
5101432234010
65115441513
71206150156
oct310561425
9120007300
1052618005
1127779760
1215756299
13ab93c1b
146db992d
1549457c0
hex322e315

52618005 has 96 divisors (see below), whose sum is σ = 107347968. Its totient is φ = 24494400.

The previous prime is 52618003. The next prime is 52618019. The reversal of 52618005 is 50081625.

It is not a de Polignac number, because 52618005 - 21 = 52618003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 52618005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52618003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 414252 + ... + 414378.

It is an arithmetic number, because the mean of its divisors is an integer number (1118208).

Almost surely, 252618005 is an apocalyptic number.

52618005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52618005 is an abundant number, since it is smaller than the sum of its proper divisors (54729963).

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

52618005 is a wasteful number, since it uses less digits than its factorization.

52618005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 52618005 is about 7253.8269210121. The cubic root of 52618005 is about 374.7239568503.

The spelling of 52618005 in words is "fifty-two million, six hundred eighteen thousand, five".

Divisors: 1 3 5 9 11 15 27 31 33 45 55 81 93 99 127 135 155 165 243 279 297 341 381 405 465 495 635 837 891 1023 1143 1215 1395 1397 1485 1705 1905 2511 2673 3069 3429 3937 4185 4191 4455 5115 5715 6985 7533 9207 10287 11811 12555 12573 13365 15345 17145 19685 20955 27621 30861 35433 37665 37719 43307 46035 51435 59055 62865 82863 106299 113157 129921 138105 154305 177165 188595 216535 318897 339471 389763 414315 531495 565785 649605 956691 1169289 1594485 1697355 1948815 3507867 4783455 5846445 10523601 17539335 52618005