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247423796 = 2261855949
BaseRepresentation
bin11101011111101…
…10001100110100
3122020120102122022
432233312030310
51001320030141
640315052312
76063032114
oct1657661464
9566512568
10247423796
11117734184
126aa41098
133c34cc19
1424c09044
1516ac5b4b
hexebf6334

247423796 has 6 divisors (see below), whose sum is σ = 432991650. Its totient is φ = 123711896.

The previous prime is 247423793. The next prime is 247423837. The reversal of 247423796 is 697324742.

It can be written as a sum of positive squares in only one way, i.e., 232135696 + 15288100 = 15236^2 + 3910^2 .

It is a super-2 number, since 2×2474237962 = 122437069654099232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247423793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30927971 + ... + 30927978.

It is an arithmetic number, because the mean of its divisors is an integer number (72165275).

Almost surely, 2247423796 is an apocalyptic number.

It is an amenable number.

247423796 is a deficient number, since it is larger than the sum of its proper divisors (185567854).

247423796 is a wasteful number, since it uses less digits than its factorization.

247423796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61855953 (or 61855951 counting only the distinct ones).

The product of its digits is 508032, while the sum is 44.

The square root of 247423796 is about 15729.7106139941. The cubic root of 247423796 is about 627.7891735548.

The spelling of 247423796 in words is "two hundred forty-seven million, four hundred twenty-three thousand, seven hundred ninety-six".

Divisors: 1 2 4 61855949 123711898 247423796