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10257072 = 2437489
BaseRepresentation
bin100111001000…
…001010110000
3201022010001120
4213020022300
510111211242
61003502240
7153120000
oct47101260
921263046
1010257072
115876321
123527980
132181897
141510000
15d791ec
hex9c82b0

10257072 has 100 divisors (see below), whose sum is σ = 31259160. Its totient is φ = 2897664.

The previous prime is 10257061. The next prime is 10257077. The reversal of 10257072 is 27075201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (10257077) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 115204 + ... + 115292.

Almost surely, 210257072 is an apocalyptic number.

10257072 is a gapful number since it is divisible by the number (12) 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 10257072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15629580).

10257072 is an abundant number, since it is smaller than the sum of its proper divisors (21002088).

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

10257072 is an frugal number, since it uses more digits than its factorization.

10257072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 10257072 is about 3202.6663891202. Note that the first 3 decimals coincide. The cubic root of 10257072 is about 217.2740208083.

The spelling of 10257072 in words is "ten million, two hundred fifty-seven thousand, seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 89 98 112 147 168 178 196 267 294 336 343 356 392 534 588 623 686 712 784 1029 1068 1176 1246 1372 1424 1869 2058 2136 2352 2401 2492 2744 3738 4116 4272 4361 4802 4984 5488 7203 7476 8232 8722 9604 9968 13083 14406 14952 16464 17444 19208 26166 28812 29904 30527 34888 38416 52332 57624 61054 69776 91581 104664 115248 122108 183162 209328 213689 244216 366324 427378 488432 641067 732648 854756 1282134 1465296 1709512 2564268 3419024 5128536 10257072