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70716831 = 329178081
BaseRepresentation
bin1000011011100…
…00110110011111
311221001210020220
410031300312133
5121100414311
611003412423
71516040343
oct415606637
9157053226
1070716831
1136a10669
121b824113
131185cba3
14956b623
15631d206
hex4370d9f

70716831 has 8 divisors (see below), whose sum is σ = 94333104. Its totient is φ = 47122560.

The previous prime is 70716829. The next prime is 70716853. The reversal of 70716831 is 13861707.

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

It is not a de Polignac number, because 70716831 - 21 = 70716829 is a prime.

It is a super-2 number, since 2×707168312 = 10001740373365122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70716792 and 70716801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70716931) 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, 4711 + ... + 12791.

It is an arithmetic number, because the mean of its divisors is an integer number (11791638).

Almost surely, 270716831 is an apocalyptic number.

70716831 is a deficient number, since it is larger than the sum of its proper divisors (23616273).

70716831 is a wasteful number, since it uses less digits than its factorization.

70716831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 70716831 is about 8409.3299970925. The cubic root of 70716831 is about 413.5305479416.

The spelling of 70716831 in words is "seventy million, seven hundred sixteen thousand, eight hundred thirty-one".

Divisors: 1 3 2917 8081 8751 24243 23572277 70716831