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70911419 = 661107279
BaseRepresentation
bin1000011101000…
…00010110111011
311221102200011212
410032200112323
5121123131134
611011513335
71520510555
oct416402673
9157380155
1070911419
1137033887
121b8b884b
13118ca627
1495bc4d5
15635abce
hex43a05bb

70911419 has 4 divisors (see below), whose sum is σ = 71019360. Its totient is φ = 70803480.

The previous prime is 70911383. The next prime is 70911433. The reversal of 70911419 is 91411907.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70911419 - 216 = 70845883 is a prime.

It is a super-2 number, since 2×709114192 = 10056858689187122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70913419) 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 3 ways as a sum of consecutive naturals, for example, 52979 + ... + 54300.

It is an arithmetic number, because the mean of its divisors is an integer number (17754840).

Almost surely, 270911419 is an apocalyptic number.

70911419 is a deficient number, since it is larger than the sum of its proper divisors (107941).

70911419 is a wasteful number, since it uses less digits than its factorization.

70911419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107940.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 70911419 is about 8420.8918173790. The cubic root of 70911419 is about 413.9094977478.

The spelling of 70911419 in words is "seventy million, nine hundred eleven thousand, four hundred nineteen".

Divisors: 1 661 107279 70911419