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247060742 = 21163106217
BaseRepresentation
bin11101011100111…
…01100100000110
3122012212222121212
432232131210012
51001221420432
640303211422
76056660465
oct1656354406
9565788555
10247060742
11117506435
126a8a6b72
133c2538b6
1424b529dc
1516a532b2
hexeb9d906

247060742 has 8 divisors (see below), whose sum is σ = 370913256. Its totient is φ = 123422992.

The previous prime is 247060679. The next prime is 247060747.

247060742 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2470607422 = 122078020475181128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247060699 and 247060708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247060747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50783 + ... + 55434.

It is an arithmetic number, because the mean of its divisors is an integer number (46364157).

Almost surely, 2247060742 is an apocalyptic number.

247060742 is a deficient number, since it is larger than the sum of its proper divisors (123852514).

247060742 is a wasteful number, since it uses less digits than its factorization.

247060742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107382.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 247060742 is about 15718.1659871628. The cubic root of 247060742 is about 627.4819638949.

The spelling of 247060742 in words is "two hundred forty-seven million, sixty thousand, seven hundred forty-two".

Divisors: 1 2 1163 2326 106217 212434 123530371 247060742