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70992449 = 1131208189
BaseRepresentation
bin1000011101101…
…00001001000001
311221120210022222
410032310021001
5121133224244
611013340425
71521266033
oct416641101
9157523288
1070992449
1137089750
121b937715
1311928488
1495ddc53
156374bee
hex43b4241

70992449 has 8 divisors (see below), whose sum is σ = 79944960. Its totient is φ = 62456400.

The previous prime is 70992433. The next prime is 70992451. The reversal of 70992449 is 94429907.

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 70992449 - 24 = 70992433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70992049) 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, 103754 + ... + 104435.

It is an arithmetic number, because the mean of its divisors is an integer number (9993120).

Almost surely, 270992449 is an apocalyptic number.

It is an amenable number.

70992449 is a deficient number, since it is larger than the sum of its proper divisors (8952511).

70992449 is a wasteful number, since it uses less digits than its factorization.

70992449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208231.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 70992449 is about 8425.7016918474. The cubic root of 70992449 is about 414.0670949313.

The spelling of 70992449 in words is "seventy million, nine hundred ninety-two thousand, four hundred forty-nine".

Divisors: 1 11 31 341 208189 2290079 6453859 70992449