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13420460 = 2251935317
BaseRepresentation
bin110011001100…
…011110101100
3221020211102002
4303030132230
511413423320
61155351432
7222033464
oct63143654
927224362
1013420460
117636a99
1245b2578
132a1b701
141ad4ba4
1512a1675
hexccc7ac

13420460 has 24 divisors (see below), whose sum is σ = 29667120. Its totient is φ = 5085504.

The previous prime is 13420453. The next prime is 13420469. The reversal of 13420460 is 6402431.

It is a happy number.

It is a super-2 number, since 2×134204602 = 360217493223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (13420469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17279 + ... + 18038.

It is an arithmetic number, because the mean of its divisors is an integer number (1236130).

Almost surely, 213420460 is an apocalyptic number.

13420460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13420460 is an abundant number, since it is smaller than the sum of its proper divisors (16246660).

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

13420460 is a wasteful number, since it uses less digits than its factorization.

13420460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35345 (or 35343 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13420460 is about 3663.3946006402. The cubic root of 13420460 is about 237.6415997706.

Adding to 13420460 its reverse (6402431), we get a palindrome (19822891).

The spelling of 13420460 in words is "thirteen million, four hundred twenty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 35317 70634 141268 176585 353170 671023 706340 1342046 2684092 3355115 6710230 13420460