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1957239050 = 2521323891471
BaseRepresentation
bin111010010101001…
…0001100100001010
312001101220001020012
41310222101210022
513002023122200
6522114231522
766334154204
oct16452214412
95041801205
101957239050
119148a0738
124675855a2
13252654c20
14147d27774
15b6c67a35
hex74a9190a

1957239050 has 96 divisors (see below), whose sum is σ = 4139735040. Its totient is φ = 683020800.

The previous prime is 1957239049. The next prime is 1957239071. The reversal of 1957239050 is 509327591.

It is a junction number, because it is equal to n+sod(n) for n = 1957238989 and 1957239007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1329815 + ... + 1331285.

It is an arithmetic number, because the mean of its divisors is an integer number (43122240).

Almost surely, 21957239050 is an apocalyptic number.

1957239050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1957239050 is an abundant number, since it is smaller than the sum of its proper divisors (2182495990).

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

1957239050 is a wasteful number, since it uses less digits than its factorization.

1957239050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 1957239050 is about 44240.6945017820. The cubic root of 1957239050 is about 1250.8770484848.

The spelling of 1957239050 in words is "one billion, nine hundred fifty-seven million, two hundred thirty-nine thousand, fifty".

Divisors: 1 2 5 10 13 23 25 26 46 50 65 89 115 130 178 230 299 325 445 575 598 650 890 1150 1157 1471 1495 2047 2225 2314 2942 2990 4094 4450 5785 7355 7475 10235 11570 14710 14950 19123 20470 26611 28925 33833 36775 38246 51175 53222 57850 67666 73550 95615 102350 130919 133055 169165 191230 261838 266110 338330 439829 478075 654595 665275 845825 879658 956150 1309190 1330550 1691650 1701947 2199145 3011137 3272975 3403894 4398290 6022274 6545950 8509735 10995725 15055685 17019470 21991450 30111370 39144781 42548675 75278425 78289562 85097350 150556850 195723905 391447810 978619525 1957239050