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10687680 = 263351237
BaseRepresentation
bin101000110001…
…010011000000
3202002222202000
4220301103000
510214001210
61021024000
7156562263
oct50612300
922088660
1010687680
11603a8a3
1236b5000
1322a2893
1415c2cda
15e11ac0
hexa314c0

10687680 has 112 divisors (see below), whose sum is σ = 37734240. Its totient is φ = 2847744.

The previous prime is 10687669. The next prime is 10687681. The reversal of 10687680 is 8678601.

It is a super-2 number, since 2×106876802 = 228453007564800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (10687681) 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, 8022 + ... + 9258.

Almost surely, 210687680 is an apocalyptic number.

10687680 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 10687680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18867120).

10687680 is an abundant number, since it is smaller than the sum of its proper divisors (27046560).

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

10687680 is a wasteful number, since it uses less digits than its factorization.

10687680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 10687680 is about 3269.2017374277. The cubic root of 10687680 is about 220.2729394789.

The spelling of 10687680 in words is "ten million, six hundred eighty-seven thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 135 144 160 180 192 216 240 270 288 320 360 432 480 540 576 720 864 960 1080 1237 1440 1728 2160 2474 2880 3711 4320 4948 6185 7422 8640 9896 11133 12370 14844 18555 19792 22266 24740 29688 33399 37110 39584 44532 49480 55665 59376 66798 74220 79168 89064 98960 111330 118752 133596 148440 166995 178128 197920 222660 237504 267192 296880 333990 356256 395840 445320 534384 593760 667980 712512 890640 1068768 1187520 1335960 1781280 2137536 2671920 3562560 5343840 10687680