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70160778 = 2324390647
BaseRepresentation
bin1000010111010…
…01000110001010
311220000112111100
410023221012022
5120430121103
610543442230
71511233242
oct413510612
9156015440
1070160778
1136670916
121b5b6376
13116c6a6c
149464b22
15625d5a3
hex42e918a

70160778 has 24 divisors (see below), whose sum is σ = 155551968. Its totient is φ = 22842792.

The previous prime is 70160777. The next prime is 70160789. The reversal of 70160778 is 87706107.

It is not an unprimeable number, because it can be changed into a prime (70160777) 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 11 ways as a sum of consecutive naturals, for example, 44550 + ... + 46097.

It is an arithmetic number, because the mean of its divisors is an integer number (6481332).

Almost surely, 270160778 is an apocalyptic number.

70160778 is an abundant number, since it is smaller than the sum of its proper divisors (85391190).

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

70160778 is a wasteful number, since it uses less digits than its factorization.

70160778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90698 (or 90695 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The square root of 70160778 is about 8376.2030777674. The cubic root of 70160778 is about 412.4438182438.

The spelling of 70160778 in words is "seventy million, one hundred sixty thousand, seven hundred seventy-eight".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 90647 181294 271941 543882 815823 1631646 3897821 7795642 11693463 23386926 35080389 70160778