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10627421 = 71518203
BaseRepresentation
bin101000100010…
…100101011101
3201222221002012
4220202211131
510210034141
61015441005
7156221510
oct50424535
921887065
1010627421
115aa95a2
123686165
13228131c
1415a8d77
15dedceb
hexa2295d

10627421 has 4 divisors (see below), whose sum is σ = 12145632. Its totient is φ = 9109212.

The previous prime is 10627387. The next prime is 10627423. The reversal of 10627421 is 12472601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-10627421 is a prime.

It is a super-2 number, since 2×106274212 = 225884154222482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10627423) 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 3 ways as a sum of consecutive naturals, for example, 759095 + ... + 759108.

It is an arithmetic number, because the mean of its divisors is an integer number (3036408).

Almost surely, 210627421 is an apocalyptic number.

It is an amenable number.

10627421 is a deficient number, since it is larger than the sum of its proper divisors (1518211).

10627421 is an equidigital number, since it uses as much as digits as its factorization.

10627421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518210.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 10627421 is about 3259.9725458967. The cubic root of 10627421 is about 219.8581799471.

The spelling of 10627421 in words is "ten million, six hundred twenty-seven thousand, four hundred twenty-one".

Divisors: 1 7 1518203 10627421