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842919952 = 24721971797
BaseRepresentation
bin110010001111011…
…111000000010000
32011202002202210111
4302033133000100
53211241414302
6215350411104
726613462400
oct6217370020
92152082714
10842919952
113a2896266
121b6360a94
1310582c804
147dd3c800
154e0040d7
hex323df010

842919952 has 120 divisors (see below), whose sum is σ = 2030495040. Its totient is φ = 336994560.

The previous prime is 842919919. The next prime is 842919953. The reversal of 842919952 is 259919248.

It is a super-3 number, since 3×8429199523 (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 842919896 and 842919905.

It is not an unprimeable number, because it can be changed into a prime (842919953) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1057218 + ... + 1058014.

It is an arithmetic number, because the mean of its divisors is an integer number (16920792).

Almost surely, 2842919952 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 842919952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015247520).

842919952 is an abundant number, since it is smaller than the sum of its proper divisors (1187575088).

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

842919952 is a wasteful number, since it uses less digits than its factorization.

842919952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 896 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The square root of 842919952 is about 29033.0837494056. The cubic root of 842919952 is about 944.6308205849.

The spelling of 842919952 in words is "eight hundred forty-two million, nine hundred nineteen thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 19 28 38 49 56 71 76 98 112 133 142 152 196 266 284 304 392 497 532 568 784 797 931 994 1064 1136 1349 1594 1862 1988 2128 2698 3188 3479 3724 3976 5396 5579 6376 6958 7448 7952 9443 10792 11158 12752 13916 14896 15143 18886 21584 22316 27832 30286 37772 39053 44632 55664 56587 60572 66101 75544 78106 89264 106001 113174 121144 132202 151088 156212 212002 226348 242288 264404 312424 396109 424004 452696 528808 624848 742007 792218 848008 905392 1057616 1075153 1484014 1584436 1696016 2150306 2772763 2968028 3168872 4300612 5545526 5936056 6337744 7526071 8601224 11091052 11872112 15052142 17202448 22182104 30104284 44364208 52682497 60208568 105364994 120417136 210729988 421459976 842919952