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10720313 = 19564227
BaseRepresentation
bin101000111001…
…010000111001
3202011122111122
4220321100321
510221022223
61021435025
7160056362
oct50712071
922148448
1010720313
11606236a
12370ba75
1322b46a6
1415d0b69
15e1b5c8
hexa39439

10720313 has 4 divisors (see below), whose sum is σ = 11284560. Its totient is φ = 10156068.

The previous prime is 10720309. The next prime is 10720321. The reversal of 10720313 is 31302701.

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 cyclic number.

It is not a de Polignac number, because 10720313 - 22 = 10720309 is a prime.

It is a super-2 number, since 2×107203132 = 229850221635938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10720291 and 10720300.

It is not an unprimeable number, because it can be changed into a prime (10770313) 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, 282095 + ... + 282132.

It is an arithmetic number, because the mean of its divisors is an integer number (2821140).

Almost surely, 210720313 is an apocalyptic number.

It is an amenable number.

10720313 is a deficient number, since it is larger than the sum of its proper divisors (564247).

10720313 is an equidigital number, since it uses as much as digits as its factorization.

10720313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564246.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 10720313 is about 3274.1889071952. The cubic root of 10720313 is about 220.4969002535.

The spelling of 10720313 in words is "ten million, seven hundred twenty thousand, three hundred thirteen".

Divisors: 1 19 564227 10720313