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70050078 = 2327555953
BaseRepresentation
bin1000010110011…
…10000100011110
311212210220122100
410023032010132
5120413100303
610541225530
71510262430
oct413160436
9155726570
1070050078
11365a572a
121b5622a6
1311688567
149436650
15623a8a3
hex42ce11e

70050078 has 24 divisors (see below), whose sum is σ = 173457648. Its totient is φ = 20014272.

The previous prime is 70050061. The next prime is 70050089. The reversal of 70050078 is 87005007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277851 + ... + 278102.

It is an arithmetic number, because the mean of its divisors is an integer number (7227402).

Almost surely, 270050078 is an apocalyptic number.

70050078 is an abundant number, since it is smaller than the sum of its proper divisors (103407570).

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

70050078 is a wasteful number, since it uses less digits than its factorization.

70050078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555968 (or 555965 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 70050078 is about 8369.5924631968. The cubic root of 70050078 is about 412.2267854707.

The spelling of 70050078 in words is "seventy million, fifty thousand, seventy-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 555953 1111906 1667859 3335718 3891671 5003577 7783342 10007154 11675013 23350026 35025039 70050078