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10857490 = 2571091423
BaseRepresentation
bin101001011010…
…110000010010
3202102121200021
4221122300102
510234414430
61024414054
7161200330
oct51326022
922377607
1010857490
116146436
12377732a
132331c67
141628b50
15e4707a
hexa5ac12

10857490 has 32 divisors (see below), whose sum is σ = 22556160. Its totient is φ = 3685824.

The previous prime is 10857443. The next prime is 10857491. The reversal of 10857490 is 9475801.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (10857491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6919 + ... + 8341.

It is an arithmetic number, because the mean of its divisors is an integer number (704880).

Almost surely, 210857490 is an apocalyptic number.

10857490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10857490 is an abundant number, since it is smaller than the sum of its proper divisors (11698670).

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

10857490 is a wasteful number, since it uses less digits than its factorization.

10857490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 10857490 is about 3295.0705607012. The cubic root of 10857490 is about 221.4334089424.

The spelling of 10857490 in words is "ten million, eight hundred fifty-seven thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 109 218 545 763 1090 1423 1526 2846 3815 7115 7630 9961 14230 19922 49805 99610 155107 310214 775535 1085749 1551070 2171498 5428745 10857490