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10857440 = 2551131199
BaseRepresentation
bin101001011010…
…101111100000
3202102121121102
4221122233200
510234414230
61024413532
7161200226
oct51325740
922377542
1010857440
1161463a0
1237772a8
132331c29
141628b16
15e47045
hexa5abe0

10857440 has 96 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 3801600.

The previous prime is 10857439. The next prime is 10857443. The reversal of 10857440 is 4475801.

10857440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10857443) 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, 54461 + ... + 54659.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

Almost surely, 210857440 is an apocalyptic number.

10857440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10857440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14515200).

10857440 is an abundant number, since it is smaller than the sum of its proper divisors (18172960).

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

10857440 is a wasteful number, since it uses less digits than its factorization.

10857440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 10857440 is about 3295.0629736016. The cubic root of 10857440 is about 221.4330690331.

The spelling of 10857440 in words is "ten million, eight hundred fifty-seven thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 31 32 40 44 55 62 80 88 110 124 155 160 176 199 220 248 310 341 352 398 440 496 620 682 796 880 992 995 1240 1364 1592 1705 1760 1990 2189 2480 2728 3184 3410 3980 4378 4960 5456 6169 6368 6820 7960 8756 10912 10945 12338 13640 15920 17512 21890 24676 27280 30845 31840 35024 43780 49352 54560 61690 67859 70048 87560 98704 123380 135718 175120 197408 246760 271436 339295 350240 493520 542872 678590 987040 1085744 1357180 2171488 2714360 5428720 10857440