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14223870 = 2335139379
BaseRepresentation
bin110110010000…
…100111111110
3222202122111000
4312100213332
512120130440
61224511130
7231621003
oct66204776
928678430
1014223870
118035671
12491b4a6
132c402bb
141c638aa
1513ae730
hexd909fe

14223870 has 64 divisors (see below), whose sum is σ = 38304000. Its totient is φ = 3755808.

The previous prime is 14223857. The next prime is 14223889. The reversal of 14223870 is 7832241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37341 + ... + 37719.

It is an arithmetic number, because the mean of its divisors is an integer number (598500).

Almost surely, 214223870 is an apocalyptic number.

14223870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14223870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19152000).

14223870 is an abundant number, since it is smaller than the sum of its proper divisors (24080130).

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

14223870 is a wasteful number, since it uses less digits than its factorization.

14223870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 14223870 is about 3771.4546265334. The cubic root of 14223870 is about 242.2921022588.

It can be divided in two parts, 1 and 4223870, that added together give a triangular number (4223871 = T2906).

The spelling of 14223870 in words is "fourteen million, two hundred twenty-three thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 139 270 278 379 417 695 758 834 1137 1251 1390 1895 2085 2274 2502 3411 3753 3790 4170 5685 6255 6822 7506 10233 11370 12510 17055 18765 20466 34110 37530 51165 52681 102330 105362 158043 263405 316086 474129 526810 790215 948258 1422387 1580430 2370645 2844774 4741290 7111935 14223870