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104280561247 = 7313109108971
BaseRepresentation
bin110000100011110011…
…0110001011001011111
3100222011111021101101011
41201013212301121133
53202031310424442
6115523354200051
710351112100622
oct1410746613137
9328144241334
10104280561247
1140252727125
1218263423027
139aab5b4115
145093767db9
152aa4e2e117
hex18479b165f

104280561247 has 8 divisors (see below), whose sum is σ = 105718096080. Its totient is φ = 102843270720.

The previous prime is 104280561241. The next prime is 104280561257. The reversal of 104280561247 is 742165082401.

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

It is a cyclic number.

It is not a de Polignac number, because 104280561247 - 211 = 104280559199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104280561241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902472 + ... + 1011442.

It is an arithmetic number, because the mean of its divisors is an integer number (13214762010).

Almost surely, 2104280561247 is an apocalyptic number.

104280561247 is a deficient number, since it is larger than the sum of its proper divisors (1437534833).

104280561247 is a wasteful number, since it uses less digits than its factorization.

104280561247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122153.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 104280561247 in words is "one hundred four billion, two hundred eighty million, five hundred sixty-one thousand, two hundred forty-seven".

Divisors: 1 73 13109 108971 956957 7954883 1428500839 104280561247