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49906770888 = 233131959314197
BaseRepresentation
bin101110011110101011…
…001110001111001000
311202211002101122022210
4232132223032033020
51304202113132023
634532111145120
73414510360522
oct563653161710
9152732348283
1049906770888
111a1900866a7
1298098151a0
13492465a080
1425b61c2a12
1514715cb593
hexb9eace3c8

49906770888 has 128 divisors (see below), whose sum is σ = 141684681600. Its totient is φ = 14522167296.

The previous prime is 49906770887. The next prime is 49906770889. The reversal of 49906770888 is 88807760994.

It is an interprime number because it is at equal distance from previous prime (49906770887) and next prime (49906770889).

It is not an unprimeable number, because it can be changed into a prime (49906770887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3508206 + ... + 3522402.

It is an arithmetic number, because the mean of its divisors is an integer number (1106911575).

Almost surely, 249906770888 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 49906770888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70842340800).

49906770888 is an abundant number, since it is smaller than the sum of its proper divisors (91777910712).

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

49906770888 is a wasteful number, since it uses less digits than its factorization.

49906770888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14831 (or 14827 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 66.

The spelling of 49906770888 in words is "forty-nine billion, nine hundred six million, seven hundred seventy thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 13 19 24 26 38 39 52 57 76 78 104 114 152 156 228 247 312 456 494 593 741 988 1186 1482 1779 1976 2372 2964 3558 4744 5928 7116 7709 11267 14197 14232 15418 22534 23127 28394 30836 33801 42591 45068 46254 56788 61672 67602 85182 90136 92508 113576 135204 146471 170364 184561 185016 269743 270408 292942 340728 369122 439413 539486 553683 585884 738244 809229 878826 1078972 1107366 1171768 1476488 1618458 1757652 2157944 2214732 3236916 3506659 3515304 4429464 6473832 7013318 8418821 10519977 14026636 16837642 21039954 25256463 28053272 33675284 42079908 50512926 67350568 84159816 101025852 109444673 159957599 202051704 218889346 319915198 328334019 437778692 479872797 639830396 656668038 875557384 959745594 1279660792 1313336076 1919491188 2079448787 2626672152 3838982376 4158897574 6238346361 8317795148 12476692722 16635590296 24953385444 49906770888