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13454480 = 2451317761
BaseRepresentation
bin110011010100…
…110010010000
3221022120002002
4303110302100
511421020410
61200213132
7222234614
oct63246220
927276062
1013454480
11765a606
12460a1a8
132a31040
141b03344
1512ab7a5
hexcd4c90

13454480 has 80 divisors (see below), whose sum is σ = 35716464. Its totient is φ = 4669440.

The previous prime is 13454477. The next prime is 13454491. The reversal of 13454480 is 8445431.

It can be written as a sum of positive squares in 8 ways, for example, as 2930944 + 10523536 = 1712^2 + 3244^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17300 + ... + 18060.

Almost surely, 213454480 is an apocalyptic number.

13454480 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 13454480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17858232).

13454480 is an abundant number, since it is smaller than the sum of its proper divisors (22261984).

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

13454480 is a wasteful number, since it uses less digits than its factorization.

13454480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 13454480 is about 3668.0348962353. The cubic root of 13454480 is about 237.8422323754.

The spelling of 13454480 in words is "thirteen million, four hundred fifty-four thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 17 20 26 34 40 52 65 68 80 85 104 130 136 170 208 221 260 272 340 442 520 680 761 884 1040 1105 1360 1522 1768 2210 3044 3536 3805 4420 6088 7610 8840 9893 12176 12937 15220 17680 19786 25874 30440 39572 49465 51748 60880 64685 79144 98930 103496 129370 158288 168181 197860 206992 258740 336362 395720 517480 672724 791440 840905 1034960 1345448 1681810 2690896 3363620 6727240 13454480