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47936198840 = 2351526378517
BaseRepresentation
bin101100101001001110…
…000101100010111000
311120201202102012122212
4230221032011202320
51241133131330330
634004355034252
73314621652515
oct545116054270
9146652365585
1047936198840
1119369809762
12935989b988
13469c3174ca
14246a5c830c
1513a85cd295
hexb293858b8

47936198840 has 32 divisors (see below), whose sum is σ = 107864887680. Its totient is φ = 19172979072.

The previous prime is 47936198813. The next prime is 47936198887. The reversal of 47936198840 is 4889163974.

It is a self number, because there is not a number n which added to its sum of digits gives 47936198840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571262 + ... + 649778.

It is an arithmetic number, because the mean of its divisors is an integer number (3370777740).

Almost surely, 247936198840 is an apocalyptic number.

47936198840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47936198840 is an abundant number, since it is smaller than the sum of its proper divisors (59928688840).

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

47936198840 is a wasteful number, since it uses less digits than its factorization.

47936198840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93791 (or 93787 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 47936198840 in words is "forty-seven billion, nine hundred thirty-six million, one hundred ninety-eight thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 15263 30526 61052 76315 78517 122104 152630 157034 305260 314068 392585 610520 628136 785170 1570340 3140680 1198404971 2396809942 4793619884 5992024855 9587239768 11984049710 23968099420 47936198840