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10147220 = 225507361
BaseRepresentation
bin100110101101…
…010110010100
3201002112100222
4212231112110
510044202340
61001253512
7152151506
oct46552624
921075328
1010147220
115800836
123494298
132143895
1414c1d76
15d568b5
hex9ad594

10147220 has 12 divisors (see below), whose sum is σ = 21309204. Its totient is φ = 4058880.

The previous prime is 10147211. The next prime is 10147229. The reversal of 10147220 is 2274101.

10147220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10147211) and next prime (10147229).

It can be written as a sum of positive squares in 2 ways, for example, as 6091024 + 4056196 = 2468^2 + 2014^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10147229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253661 + ... + 253700.

It is an arithmetic number, because the mean of its divisors is an integer number (1775767).

Almost surely, 210147220 is an apocalyptic number.

10147220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10147220 is an abundant number, since it is smaller than the sum of its proper divisors (11161984).

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

10147220 is a wasteful number, since it uses less digits than its factorization.

10147220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507370 (or 507368 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 10147220 is about 3185.4701379859. The cubic root of 10147220 is about 216.4955756500.

The spelling of 10147220 in words is "ten million, one hundred forty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 507361 1014722 2029444 2536805 5073610 10147220