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47787908376 = 233134716319993
BaseRepresentation
bin101100100000011000…
…011001110100011000
311120100102101021101110
4230200120121310120
51240332201032001
633541540420320
73311141343015
oct544030316430
9146312337343
1047787908376
11192a303495a
1293180a76a0
134677696780
142454a2670c
15139a58a3d6
hexb20619d18

47787908376 has 128 divisors (see below), whose sum is σ = 132209925120. Its totient is φ = 14302116864.

The previous prime is 47787908369. The next prime is 47787908431. The reversal of 47787908376 is 67380978774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2380236 + ... + 2400228.

It is an arithmetic number, because the mean of its divisors is an integer number (1032890040).

Almost surely, 247787908376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47787908376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66104962560).

47787908376 is an abundant number, since it is smaller than the sum of its proper divisors (84422016744).

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

47787908376 is a wasteful number, since it uses less digits than its factorization.

47787908376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20225 (or 20221 counting only the distinct ones).

The product of its (nonzero) digits is 99574272, while the sum is 66.

The spelling of 47787908376 in words is "forty-seven billion, seven hundred eighty-seven million, nine hundred eight thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 47 52 78 94 104 141 156 163 188 282 312 326 376 489 564 611 652 978 1128 1222 1304 1833 1956 2119 2444 3666 3912 4238 4888 6357 7332 7661 8476 12714 14664 15322 16952 19993 22983 25428 30644 39986 45966 50856 59979 61288 79972 91932 99593 119958 159944 183864 199186 239916 259909 298779 398372 479832 519818 597558 779727 796744 939671 1039636 1195116 1559454 1879342 2079272 2390232 2819013 3118908 3258859 3758684 5638026 6237816 6517718 7517368 9776577 11276052 12215723 13035436 19553154 22552104 24431446 26070872 36647169 39106308 42365167 48862892 73294338 78212616 84730334 97725784 127095501 146588676 153166373 169460668 254191002 293177352 306332746 338921336 459499119 508382004 612665492 918998238 1016764008 1225330984 1837996476 1991162849 3675992952 3982325698 5973488547 7964651396 11946977094 15929302792 23893954188 47787908376