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247024342 = 21319712
BaseRepresentation
bin11101011100101…
…00101011010110
3122012211010200201
432232110223112
51001214234332
640302331114
76056446405
oct1656245326
9565733621
10247024342
11117491054
126a889a9a
133c240166
1424b4363c
1516a475e7
hexeb94ad6

247024342 has 12 divisors (see below), whose sum is σ = 373749948. Its totient is φ = 122443100.

The previous prime is 247024333. The next prime is 247024343. The reversal of 247024342 is 243420742.

247024342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2470243422 = 122042051081065928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247024342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247024343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253917 + ... + 254887.

It is an arithmetic number, because the mean of its divisors is an integer number (31145829).

Almost surely, 2247024342 is an apocalyptic number.

247024342 is a deficient number, since it is larger than the sum of its proper divisors (126725606).

247024342 is an frugal number, since it uses more digits than its factorization.

247024342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 247024342 is about 15717.0080486077. The cubic root of 247024342 is about 627.4511462842.

The spelling of 247024342 in words is "two hundred forty-seven million, twenty-four thousand, three hundred forty-two".

Divisors: 1 2 131 262 971 1942 127201 254402 942841 1885682 123512171 247024342