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18068470 = 257359719
BaseRepresentation
bin100010011101…
…1001111110110
31020222222021121
41010323033312
514111142340
61443134154
7306402520
oct104731766
936888247
1018068470
11a221122
12607435a
133988204
142584a10
1518bd94a
hex113b3f6

18068470 has 32 divisors (see below), whose sum is σ = 37324800. Its totient is φ = 6169056.

The previous prime is 18068441. The next prime is 18068473. The reversal of 18068470 is 7486081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18068473) 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, 24771 + ... + 25489.

It is an arithmetic number, because the mean of its divisors is an integer number (1166400).

Almost surely, 218068470 is an apocalyptic number.

18068470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18068470 is an abundant number, since it is smaller than the sum of its proper divisors (19256330).

18068470 is a wasteful number, since it uses less digits than its factorization.

18068470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 18068470 is about 4250.7022949155. The cubic root of 18068470 is about 262.4060192669.

The spelling of 18068470 in words is "eighteen million, sixty-eight thousand, four hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 359 718 719 1438 1795 2513 3590 3595 5026 5033 7190 10066 12565 25130 25165 50330 258121 516242 1290605 1806847 2581210 3613694 9034235 18068470