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20401410 = 2353121937
BaseRepresentation
bin100110111010…
…0110100000010
31102101111110210
41031310310002
520210321120
62005134550
7335260221
oct115646402
942344423
1020401410
1110574977
1269ba456
1342c4053
1429d0cb8
151bcece0
hex1374d02

20401410 has 32 divisors (see below), whose sum is σ = 50545152. Its totient is φ = 5264640.

The previous prime is 20401397. The next prime is 20401427. The reversal of 20401410 is 1410402.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10039 + ... + 11898.

It is an arithmetic number, because the mean of its divisors is an integer number (1579536).

Almost surely, 220401410 is an apocalyptic number.

20401410 is an abundant number, since it is smaller than the sum of its proper divisors (30143742).

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

20401410 is a wasteful number, since it uses less digits than its factorization.

20401410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21978.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20401410 is about 4516.7920031810. The cubic root of 20401410 is about 273.2457366868.

Adding to 20401410 its reverse (1410402), we get a palindrome (21811812).

The spelling of 20401410 in words is "twenty million, four hundred one thousand, four hundred ten".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 21937 43874 65811 109685 131622 219370 329055 658110 680047 1360094 2040141 3400235 4080282 6800470 10200705 20401410