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47918402748 = 22324773387953
BaseRepresentation
bin101100101000001010…
…001100110010111100
311120200111221002000100
4230220022030302330
51241114102341443
634002521401100
73314314463046
oct545012146274
9146614832010
1047918402748
111935a764247
129353939190
134698726288
1424680b4a96
1513a6c653d3
hexb2828ccbc

47918402748 has 72 divisors (see below), whose sum is σ = 125399147328. Its totient is φ = 15418764288.

The previous prime is 47918402717. The next prime is 47918402759. The reversal of 47918402748 is 84720481974.

It is a junction number, because it is equal to n+sod(n) for n = 47918402694 and 47918402703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70461 + ... + 317492.

It is an arithmetic number, because the mean of its divisors is an integer number (1741654824).

Almost surely, 247918402748 is an apocalyptic number.

It is an amenable number.

47918402748 is an abundant number, since it is smaller than the sum of its proper divisors (77480744580).

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

47918402748 is a wasteful number, since it uses less digits than its factorization.

47918402748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388083 (or 388078 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 47918402748 in words is "forty-seven billion, nine hundred eighteen million, four hundred two thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 47 73 94 141 146 188 219 282 292 423 438 564 657 846 876 1314 1692 2628 3431 6862 10293 13724 20586 30879 41172 61758 123516 387953 775906 1163859 1551812 2327718 3491577 4655436 6983154 13966308 18233791 28320569 36467582 54701373 56641138 72935164 84961707 109402746 113282276 164104119 169923414 218805492 254885121 328208238 339846828 509770242 656416476 1019540484 1331066743 2662133486 3993200229 5324266972 7986400458 11979600687 15972800916 23959201374 47918402748