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78958048 = 2513593217
BaseRepresentation
bin1001011010011…
…00110111100000
312111120111002011
410231030313200
5130203124143
611500202304
71646063251
oct455146740
9174514064
1078958048
114062a394
1222539394
1313487050
14a6b4b28
156de9e9d
hex4b4cde0

78958048 has 48 divisors (see below), whose sum is σ = 170296560. Its totient is φ = 35813376.

The previous prime is 78958031. The next prime is 78958067. The reversal of 78958048 is 84085987.

It is a junction number, because it is equal to n+sod(n) for n = 78957992 and 78958010.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 22936 + ... + 26152.

It is an arithmetic number, because the mean of its divisors is an integer number (3547845).

Almost surely, 278958048 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 78958048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85148280).

78958048 is an abundant number, since it is smaller than the sum of its proper divisors (91338512).

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

78958048 is a wasteful number, since it uses less digits than its factorization.

78958048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299 (or 3291 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 78958048 is about 8885.8341195411. The cubic root of 78958048 is about 429.0080759470.

The spelling of 78958048 in words is "seventy-eight million, nine hundred fifty-eight thousand, forty-eight".

Divisors: 1 2 4 8 13 16 26 32 52 59 104 118 208 236 416 472 767 944 1534 1888 3068 3217 6136 6434 12272 12868 24544 25736 41821 51472 83642 102944 167284 189803 334568 379606 669136 759212 1338272 1518424 2467439 3036848 4934878 6073696 9869756 19739512 39479024 78958048