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70808699 = 135446823
BaseRepresentation
bin1000011100001…
…11010001111011
311221020110021102
410032013101323
5121111334244
611005402015
71516602233
oct416072173
9157213242
1070808699
1136a73695
121b86930b
1311892950
149592cc3
15633a54e
hex438747b

70808699 has 4 divisors (see below), whose sum is σ = 76255536. Its totient is φ = 65361864.

The previous prime is 70808693. The next prime is 70808701. The reversal of 70808699 is 99680807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99680807 = 283352229.

It is a cyclic number.

It is not a de Polignac number, because 70808699 - 28 = 70808443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70808693) 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, 2723399 + ... + 2723424.

It is an arithmetic number, because the mean of its divisors is an integer number (19063884).

Almost surely, 270808699 is an apocalyptic number.

70808699 is a deficient number, since it is larger than the sum of its proper divisors (5446837).

70808699 is a wasteful number, since it uses less digits than its factorization.

70808699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446836.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 70808699 is about 8414.7904905589. The cubic root of 70808699 is about 413.7095425068.

The spelling of 70808699 in words is "seventy million, eight hundred eight thousand, six hundred ninety-nine".

Divisors: 1 13 5446823 70808699