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13470870 = 2357232789
BaseRepresentation
bin110011011000…
…110010010110
3221100101120010
4303120302112
511422031440
61200421050
7222333450
oct63306226
927311503
1013470870
117670956
124617786
132a3863a
141b092d0
1512b1580
hexcd8c96

13470870 has 64 divisors (see below), whose sum is σ = 38568960. Its totient is φ = 2944128.

The previous prime is 13470857. The next prime is 13470871. The reversal of 13470870 is 7807431.

It is a happy number.

13470870 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×134708703 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13470871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3436 + ... + 6224.

It is an arithmetic number, because the mean of its divisors is an integer number (602640).

Almost surely, 213470870 is an apocalyptic number.

13470870 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 13470870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19284480).

13470870 is an abundant number, since it is smaller than the sum of its proper divisors (25098090).

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

13470870 is a wasteful number, since it uses less digits than its factorization.

13470870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 13470870 is about 3670.2683825573. The cubic root of 13470870 is about 237.9387715292.

The spelling of 13470870 in words is "thirteen million, four hundred seventy thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 30 35 42 46 69 70 105 115 138 161 210 230 322 345 483 690 805 966 1610 2415 2789 4830 5578 8367 13945 16734 19523 27890 39046 41835 58569 64147 83670 97615 117138 128294 192441 195230 292845 320735 384882 449029 585690 641470 898058 962205 1347087 1924410 2245145 2694174 4490290 6735435 13470870