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70343263 = 1719217781
BaseRepresentation
bin1000011000101…
…01101001011111
311220100210211001
410030111221133
5121001441023
610551411131
71512623254
oct414255137
9156323731
1070343263
1136785a31
121b683aa7
131175bb43
1494b142b
1562976ad
hex4315a5f

70343263 has 8 divisors (see below), whose sum is σ = 78401520. Its totient is φ = 62720640.

The previous prime is 70343261. The next prime is 70343267. The reversal of 70343263 is 36234307.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70343263 - 21 = 70343261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70343261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108568 + ... + 109213.

It is an arithmetic number, because the mean of its divisors is an integer number (9800190).

Almost surely, 270343263 is an apocalyptic number.

70343263 is a deficient number, since it is larger than the sum of its proper divisors (8058257).

70343263 is a wasteful number, since it uses less digits than its factorization.

70343263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217817.

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 70343263 is about 8387.0890659394. The cubic root of 70343263 is about 412.8010912245.

The spelling of 70343263 in words is "seventy million, three hundred forty-three thousand, two hundred sixty-three".

Divisors: 1 17 19 323 217781 3702277 4137839 70343263