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21341400 = 2335235569
BaseRepresentation
bin101000101101…
…0010011011000
31111011020220020
41101122103120
520430411100
62041230440
7346253553
oct121322330
944136806
1021341400
1111057123
127192420
134562b62
142b9769a
151d185a0
hex145a4d8

21341400 has 48 divisors (see below), whose sum is σ = 66160200. Its totient is φ = 5690880.

The previous prime is 21341387. The next prime is 21341407. The reversal of 21341400 is 414312.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21341400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341407) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 17185 + ... + 18384.

Almost surely, 221341400 is an apocalyptic number.

21341400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21341400 is an abundant number, since it is smaller than the sum of its proper divisors (44818800).

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

21341400 is a wasteful number, since it uses less digits than its factorization.

21341400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35588 (or 35579 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 21341400 is about 4619.6753132661. The cubic root of 21341400 is about 277.3794622994.

Adding to 21341400 its reverse (414312), we get a palindrome (21755712).

The spelling of 21341400 in words is "twenty-one million, three hundred forty-one thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 200 300 600 35569 71138 106707 142276 177845 213414 284552 355690 426828 533535 711380 853656 889225 1067070 1422760 1778450 2134140 2667675 3556900 4268280 5335350 7113800 10670700 21341400