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247280230 = 2524728023
BaseRepresentation
bin11101011110100…
…11001001100110
3122020022010201001
432233103021212
51001300431410
640312023514
76061563421
oct1657231146
9566263631
10247280230
1111764632a
126a991b9a
133c2cc782
1424bac9b8
1516a9833a
hexebd3266

247280230 has 8 divisors (see below), whose sum is σ = 445104432. Its totient is φ = 98912088.

The previous prime is 247280221. The next prime is 247280233. The reversal of 247280230 is 32082742.

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

It is a super-2 number, since 2×2472802302 = 122295024297705800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247280233) 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, 12364002 + ... + 12364021.

It is an arithmetic number, because the mean of its divisors is an integer number (55638054).

Almost surely, 2247280230 is an apocalyptic number.

247280230 is a deficient number, since it is larger than the sum of its proper divisors (197824202).

247280230 is a wasteful number, since it uses less digits than its factorization.

247280230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24728030.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 247280230 is about 15725.1464222118. The cubic root of 247280230 is about 627.6677265748.

The spelling of 247280230 in words is "two hundred forty-seven million, two hundred eighty thousand, two hundred thirty".

Divisors: 1 2 5 10 24728023 49456046 123640115 247280230