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70934889 = 323644963
BaseRepresentation
bin1000011101001…
…10000101101001
311221110212101010
410032212011221
5121124404024
611012214133
71520636154
oct416460551
9157425333
1070934889
113704a483
121b90a349
131190820c
1495c6c9b
156362b29
hex43a6169

70934889 has 4 divisors (see below), whose sum is σ = 94579856. Its totient is φ = 47289924.

The previous prime is 70934849. The next prime is 70934909. The reversal of 70934889 is 98843907.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 70934889 - 212 = 70930793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70934819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11822479 + ... + 11822484.

It is an arithmetic number, because the mean of its divisors is an integer number (23644964).

Almost surely, 270934889 is an apocalyptic number.

It is an amenable number.

70934889 is a deficient number, since it is larger than the sum of its proper divisors (23644967).

70934889 is a wasteful number, since it uses less digits than its factorization.

70934889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23644966.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 70934889 is about 8422.2852599517. The cubic root of 70934889 is about 413.9551574572.

The spelling of 70934889 in words is "seventy million, nine hundred thirty-four thousand, eight hundred eighty-nine".

Divisors: 1 3 23644963 70934889