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47912021192 = 2374801178207
BaseRepresentation
bin101100100111110001…
…110110110011001000
311120200001220212011102
4230213301312303020
51241110434134232
634002132520532
73314206313660
oct544761666310
9146601825142
1047912021192
11193570a5732
129351780148
1346973006c9
1424672d31a0
1513a6404662
hexb27c76cc8

47912021192 has 32 divisors (see below), whose sum is σ = 102690577920. Its totient is φ = 20529331200.

The previous prime is 47912021191. The next prime is 47912021197. The reversal of 47912021192 is 29112021974.

It is not an unprimeable number, because it can be changed into a prime (47912021191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179753 + ... + 357959.

It is an arithmetic number, because the mean of its divisors is an integer number (3209080560).

Almost surely, 247912021192 is an apocalyptic number.

It is an amenable number.

47912021192 is an abundant number, since it is smaller than the sum of its proper divisors (54778556728).

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

47912021192 is a wasteful number, since it uses less digits than its factorization.

47912021192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183021 (or 183017 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 47912021192 in words is "forty-seven billion, nine hundred twelve million, twenty-one thousand, one hundred ninety-two".

Divisors: 1 2 4 7 8 14 28 56 4801 9602 19204 33607 38408 67214 134428 178207 268856 356414 712828 1247449 1425656 2494898 4989796 9979592 855571807 1711143614 3422287228 5989002649 6844574456 11978005298 23956010596 47912021192