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47761904472 = 23373251313347
BaseRepresentation
bin101100011110110101…
…001101001101011000
311120021121110010201220
4230132311031031120
51240304021420342
633535211212040
73310404326622
oct543665151530
9146247403656
1047761904472
111928a393827
12930b447020
134672190649
1424513b7c12
1513981505ec
hexb1ed4d358

47761904472 has 128 divisors (see below), whose sum is σ = 122262255360. Its totient is φ = 15545088000.

The previous prime is 47761904461. The next prime is 47761904479. The reversal of 47761904472 is 27440916774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47761904479) 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 31 ways as a sum of consecutive naturals, for example, 137642203 + ... + 137642549.

It is an arithmetic number, because the mean of its divisors is an integer number (955173870).

Almost surely, 247761904472 is an apocalyptic number.

It is an amenable number.

47761904472 is an abundant number, since it is smaller than the sum of its proper divisors (74500350888).

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

47761904472 is a wasteful number, since it uses less digits than its factorization.

47761904472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 47761904472 in words is "forty-seven billion, seven hundred sixty-one million, nine hundred four thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 73 146 219 251 292 313 347 438 502 584 626 694 753 876 939 1004 1041 1252 1388 1506 1752 1878 2008 2082 2504 2776 3012 3756 4164 6024 7512 8328 18323 22849 25331 36646 45698 50662 54969 68547 73292 75993 78563 87097 91396 101324 108611 109938 137094 146584 151986 157126 174194 182792 202648 217222 219876 235689 261291 274188 303972 314252 325833 348388 434444 439752 471378 522582 548376 607944 628504 651666 696776 868888 942756 1045164 1303332 1885512 2090328 2606664 5735099 6358081 7928603 11470198 12716162 15857206 17205297 19074243 22940396 23785809 25432324 27261361 31714412 34410594 38148486 45880792 47571618 50864648 54522722 63428824 68821188 76296972 81784083 95143236 109045444 137642376 152593944 163568166 190286472 218090888 327136332 654272664 1990079353 3980158706 5970238059 7960317412 11940476118 15920634824 23880952236 47761904472