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10550420 = 2254191259
BaseRepresentation
bin101000001111…
…110010010100
3201212000110022
4220033302110
510200103140
61014044312
7155451146
oct50176224
921760408
1010550420
115a56761
123649698
13225526a
141588c96
15dd60b5
hexa0fc94

10550420 has 24 divisors (see below), whose sum is σ = 22226400. Its totient is φ = 4206752.

The previous prime is 10550413. The next prime is 10550429. The reversal of 10550420 is 2405501.

It is a super-2 number, since 2×105504202 = 222622724352800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10550429) 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, 7751 + ... + 9009.

It is an arithmetic number, because the mean of its divisors is an integer number (926100).

Almost surely, 210550420 is an apocalyptic number.

10550420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10550420 is an abundant number, since it is smaller than the sum of its proper divisors (11675980).

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

10550420 is a wasteful number, since it uses less digits than its factorization.

10550420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 10550420 is about 3248.1410067914. The cubic root of 10550420 is about 219.3258980264.

Adding to 10550420 its reverse (2405501), we get a palindrome (12955921).

The spelling of 10550420 in words is "ten million, five hundred fifty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 419 838 1259 1676 2095 2518 4190 5036 6295 8380 12590 25180 527521 1055042 2110084 2637605 5275210 10550420