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70714687 = 307230341
BaseRepresentation
bin1000011011100…
…00010100111111
311221001200022111
410031300110333
5121100332222
611003354451
71516031161
oct415602477
9157050274
1070714687
1136a09a9a
121b822a27
131185bc14
14956a931
15631c777
hex437053f

70714687 has 4 divisors (see below), whose sum is σ = 70945336. Its totient is φ = 70484040.

The previous prime is 70714669. The next prime is 70714691. The reversal of 70714687 is 78641707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78641707 = 292711783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70714687 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 (70714607) 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, 114864 + ... + 115477.

It is an arithmetic number, because the mean of its divisors is an integer number (17736334).

Almost surely, 270714687 is an apocalyptic number.

70714687 is a deficient number, since it is larger than the sum of its proper divisors (230649).

70714687 is a wasteful number, since it uses less digits than its factorization.

70714687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230648.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 70714687 is about 8409.2025186697. The cubic root of 70714687 is about 413.5263687458.

The spelling of 70714687 in words is "seventy million, seven hundred fourteen thousand, six hundred eighty-seven".

Divisors: 1 307 230341 70714687