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70030311 = 3131795649
BaseRepresentation
bin1000010110010…
…01001111100111
311212202220112020
410023021033213
5120411432221
610540554223
71510151001
oct413111747
9155686466
1070030311
113659189a
121b552973
131167c570
14942d371
156234ac6
hex42c93e7

70030311 has 8 divisors (see below), whose sum is σ = 100556400. Its totient is φ = 43095552.

The previous prime is 70030297. The next prime is 70030313. The reversal of 70030311 is 11303007.

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

It is not a de Polignac number, because 70030311 - 213 = 70022119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70030313) 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, 897786 + ... + 897863.

It is an arithmetic number, because the mean of its divisors is an integer number (12569550).

Almost surely, 270030311 is an apocalyptic number.

70030311 is a deficient number, since it is larger than the sum of its proper divisors (30526089).

70030311 is a wasteful number, since it uses less digits than its factorization.

70030311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795665.

The product of its (nonzero) digits is 63, while the sum is 15.

The square root of 70030311 is about 8368.4114980084. The cubic root of 70030311 is about 412.1880072439.

Adding to 70030311 its reverse (11303007), we get a palindrome (81333318).

The spelling of 70030311 in words is "seventy million, thirty thousand, three hundred eleven".

Divisors: 1 3 13 39 1795649 5386947 23343437 70030311