Search a number
-
+
623052885 = 357213197331
BaseRepresentation
bin100101001000110…
…000100001010101
31121102101100212210
4211020300201111
52234000143020
6141454104033
721303601500
oct4510604125
91542340783
10623052885
1129a773944
121547ab019
139c10a760
145ca68137
1539a733e0
hex25230855

623052885 has 96 divisors (see below), whose sum is σ = 1258975872. Its totient is φ = 260789760.

The previous prime is 623052877. The next prime is 623052901. The reversal of 623052885 is 588250326.

It is not a de Polignac number, because 623052885 - 23 = 623052877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1882170 + ... + 1882500.

It is an arithmetic number, because the mean of its divisors is an integer number (13114332).

Almost surely, 2623052885 is an apocalyptic number.

623052885 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

623052885 is an abundant number, since it is smaller than the sum of its proper divisors (635922987).

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

623052885 is a wasteful number, since it uses less digits than its factorization.

623052885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 623052885 is about 24961.0273226083. The cubic root of 623052885 is about 854.0991777678.

The spelling of 623052885 in words is "six hundred twenty-three million, fifty-two thousand, eight hundred eighty-five".

Divisors: 1 3 5 7 13 15 21 35 39 49 65 91 105 147 195 197 245 273 331 455 591 637 735 985 993 1365 1379 1655 1911 2317 2561 2955 3185 4137 4303 4965 6895 6951 7683 9555 9653 11585 12805 12909 16219 17927 20685 21515 28959 30121 34755 38415 48265 48657 53781 64545 65207 81095 89635 90363 125489 144795 150605 195621 210847 243285 268905 326035 376467 451815 456449 627445 632541 847691 978105 1054235 1369347 1882335 2282245 2543073 3162705 3195143 4238455 5933837 6846735 9585429 12715365 15975715 17801511 29669185 41536859 47927145 89007555 124610577 207684295 623052885