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10240881 = 373115731
BaseRepresentation
bin100111000100…
…001101110001
3201021021211220
4213010031301
510110202011
61003255253
7153021540
oct47041561
921237756
1010240881
115865142
12351a529
1321773c1
141508157
15d74506
hex9c4371

10240881 has 16 divisors (see below), whose sum is σ = 16109568. Its totient is φ = 5662800.

The previous prime is 10240871. The next prime is 10240889. The reversal of 10240881 is 18804201.

It is not a de Polignac number, because 10240881 - 29 = 10240369 is a prime.

It is a super-2 number, since 2×102408812 = 209751287312322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10240889) 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 15 ways as a sum of consecutive naturals, for example, 7215 + ... + 8516.

It is an arithmetic number, because the mean of its divisors is an integer number (1006848).

Almost surely, 210240881 is an apocalyptic number.

It is an amenable number.

10240881 is a deficient number, since it is larger than the sum of its proper divisors (5868687).

10240881 is a wasteful number, since it uses less digits than its factorization.

10240881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15772.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 10240881 is about 3200.1376532893. The cubic root of 10240881 is about 217.1596367582.

The spelling of 10240881 in words is "ten million, two hundred forty thousand, eight hundred eighty-one".

Divisors: 1 3 7 21 31 93 217 651 15731 47193 110117 330351 487661 1462983 3413627 10240881