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13468680 = 233454157
BaseRepresentation
bin110011011000…
…010000001000
3221100021120000
4303120100020
511421444210
61200403000
7222324201
oct63302010
927307500
1013468680
11766a245
124616460
132a37644
141b085a8
1512b0ac0
hexcd8408

13468680 has 80 divisors (see below), whose sum is σ = 45280620. Its totient is φ = 3590784.

The previous prime is 13468669. The next prime is 13468687. The reversal of 13468680 is 8686431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13351716 + 116964 = 3654^2 + 342^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13468687) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1162 + ... + 5318.

Almost surely, 213468680 is an apocalyptic number.

13468680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13468680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22640310).

13468680 is an abundant number, since it is smaller than the sum of its proper divisors (31811940).

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

13468680 is a wasteful number, since it uses less digits than its factorization.

13468680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 13468680 is about 3669.9700271256. The cubic root of 13468680 is about 237.9258766889.

The spelling of 13468680 in words is "thirteen million, four hundred sixty-eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 270 324 360 405 540 648 810 1080 1620 3240 4157 8314 12471 16628 20785 24942 33256 37413 41570 49884 62355 74826 83140 99768 112239 124710 149652 166280 187065 224478 249420 299304 336717 374130 448956 498840 561195 673434 748260 897912 1122390 1346868 1496520 1683585 2244780 2693736 3367170 4489560 6734340 13468680