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28002472470 = 2335724349223
BaseRepresentation
bin11010000101000100…
…111101001000010110
32200021112120222202000
4122011010331020112
5424322113104340
620510354100130
72010633042300
oct320504751026
980245528660
1028002472470
111096a736035
125515b7a646
1328435a524b
1414d9034970
15add5a3d30
hex68513d216

28002472470 has 192 divisors, whose sum is σ = 88886730240. Its totient is φ = 6251587776.

The previous prime is 28002472457. The next prime is 28002472481. The reversal of 28002472470 is 7427420082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 544279 + ... + 593501.

It is an arithmetic number, because the mean of its divisors is an integer number (462951720).

Almost surely, 228002472470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28002472470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44443365120).

28002472470 is an abundant number, since it is smaller than the sum of its proper divisors (60884257770).

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

28002472470 is a wasteful number, since it uses less digits than its factorization.

28002472470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49296 (or 49283 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The spelling of 28002472470 in words is "twenty-eight billion, two million, four hundred seventy-two thousand, four hundred seventy".