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247038 = 231119197
BaseRepresentation
bin111100010011111110
3110112212120
4330103332
530401123
65143410
72046141
oct742376
9415776
10247038
11159670
12bab66
138859c
1466058
154d2e3
hex3c4fe

247038 has 32 divisors (see below), whose sum is σ = 570240. Its totient is φ = 70560.

The previous prime is 247031. The next prime is 247067. The reversal of 247038 is 830742.

It is a super-2 number, since 2×2470382 = 122055546888, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 246999 and 247017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247031) 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, 1156 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (17820).

2247038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285120).

247038 is an abundant number, since it is smaller than the sum of its proper divisors (323202).

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

247038 is a wasteful number, since it uses less digits than its factorization.

247038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 247038 is about 497.0291741940. The cubic root of 247038 is about 62.7462710016.

The spelling of 247038 in words is "two hundred forty-seven thousand, thirty-eight".

Divisors: 1 2 3 6 11 19 22 33 38 57 66 114 197 209 394 418 591 627 1182 1254 2167 3743 4334 6501 7486 11229 13002 22458 41173 82346 123519 247038