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78914950 = 2521578299
BaseRepresentation
bin1001011010000…
…10010110000110
312111111021221221
410231002112012
5130200234300
611455230554
71645523512
oct455022606
9174437857
1078914950
11405aaa74
122251845a
131347054a
14a6a3142
156ddc31a
hex4b42586

78914950 has 12 divisors (see below), whose sum is σ = 146781900. Its totient is φ = 31565960.

The previous prime is 78914921. The next prime is 78914959. The reversal of 78914950 is 5941987.

It is a junction number, because it is equal to n+sod(n) for n = 78914897 and 78914906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78914959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 789100 + ... + 789199.

It is an arithmetic number, because the mean of its divisors is an integer number (12231825).

Almost surely, 278914950 is an apocalyptic number.

78914950 is a deficient number, since it is larger than the sum of its proper divisors (67866950).

78914950 is a wasteful number, since it uses less digits than its factorization.

78914950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578311 (or 1578306 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 78914950 is about 8883.4086926134. The cubic root of 78914950 is about 428.9300059862.

The spelling of 78914950 in words is "seventy-eight million, nine hundred fourteen thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 1578299 3156598 7891495 15782990 39457475 78914950