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18876468 = 22313235261
BaseRepresentation
bin100100000000…
…0100000110100
31022112000122110
41020000200310
514313021333
61512331020
7316306302
oct110004064
938460573
1018876468
11a723196
1263a3a70
133babc10
142715272
1519cd063
hex1200834

18876468 has 48 divisors (see below), whose sum is σ = 49504896. Its totient is φ = 5554560.

The previous prime is 18876467. The next prime is 18876479. The reversal of 18876468 is 86467881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18876461) 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, 958 + ... + 6218.

It is an arithmetic number, because the mean of its divisors is an integer number (1031352).

Almost surely, 218876468 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 18876468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24752448).

18876468 is an abundant number, since it is smaller than the sum of its proper divisors (30628428).

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

18876468 is a wasteful number, since it uses less digits than its factorization.

18876468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304 (or 5302 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 18876468 is about 4344.7057437760. The cubic root of 18876468 is about 266.2606035143.

The spelling of 18876468 in words is "eighteen million, eight hundred seventy-six thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 23 26 39 46 52 69 78 92 138 156 276 299 598 897 1196 1794 3588 5261 10522 15783 21044 31566 63132 68393 121003 136786 205179 242006 273572 363009 410358 484012 726018 820716 1452036 1573039 3146078 4719117 6292156 9438234 18876468