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10420454 = 2112916333
BaseRepresentation
bin100111110000…
…000011100110
3201121102011202
4213300003212
510131423304
61011202502
7154400222
oct47600346
921542152
1010420454
115978050
1235a6432
13220b065
141553782
15dac81e
hex9f00e6

10420454 has 16 divisors (see below), whose sum is σ = 17640720. Its totient is φ = 4572960.

The previous prime is 10420453. The next prime is 10420469. The reversal of 10420454 is 45402401.

It is a super-2 number, since 2×104204542 = 217171723132232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420451) 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 7 ways as a sum of consecutive naturals, for example, 7529 + ... + 8804.

It is an arithmetic number, because the mean of its divisors is an integer number (1102545).

Almost surely, 210420454 is an apocalyptic number.

10420454 is a deficient number, since it is larger than the sum of its proper divisors (7220266).

10420454 is a wasteful number, since it uses less digits than its factorization.

10420454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16375.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 10420454 is about 3228.0727996748. The cubic root of 10420454 is about 218.4215813002.

Adding to 10420454 its reverse (45402401), we get a palindrome (55822855).

The spelling of 10420454 in words is "ten million, four hundred twenty thousand, four hundred fifty-four".

Divisors: 1 2 11 22 29 58 319 638 16333 32666 179663 359326 473657 947314 5210227 10420454