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47717417140 = 22561186121017
BaseRepresentation
bin101100011100001011…
…100000000010110100
311120011111201221120221
4230130023200002310
51240211124322030
633530541504124
73306324232141
oct543413400264
9146144657527
1047717417140
1119267268838
1292b8572044
134665bb5493
1424495173c8
1513942b3e7a
hexb1c2e00b4

47717417140 has 48 divisors (see below), whose sum is σ = 101908883664. Its totient is φ = 18763084800.

The previous prime is 47717417053. The next prime is 47717417141. The reversal of 47717417140 is 4171471774.

It can be written as a sum of positive squares in 8 ways, for example, as 38933603856 + 8783813284 = 197316^2 + 93722^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47717417141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2259912 + ... + 2280928.

It is an arithmetic number, because the mean of its divisors is an integer number (2123101743).

Almost surely, 247717417140 is an apocalyptic number.

It is an amenable number.

47717417140 is an abundant number, since it is smaller than the sum of its proper divisors (54191466524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47717417140 is a wasteful number, since it uses less digits than its factorization.

47717417140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22948 (or 22946 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 43.

The spelling of 47717417140 in words is "forty-seven billion, seven hundred seventeen million, four hundred seventeen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 1861 3722 7444 9305 18610 21017 37220 42034 84068 105085 113521 210170 227042 420340 454084 567605 1135210 1282037 2270420 2564074 5128148 6410185 12820370 25640740 39112637 78225274 156450548 195563185 391126370 782252740 2385870857 4771741714 9543483428 11929354285 23858708570 47717417140