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70550013 = 326389417
BaseRepresentation
bin1000011010010…
…00000111111101
311220202022102110
410031020013331
5121030100023
611000044233
71514444112
oct415100775
9156668373
1070550013
11369072a6
121b763679
1311801c91
149526909
1562d8a93
hex43481fd

70550013 has 8 divisors (see below), whose sum is σ = 94425408. Its totient is φ = 46853984.

The previous prime is 70550003. The next prime is 70550063. The reversal of 70550013 is 31005507.

It is a happy number.

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 70550013 - 25 = 70549981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70550003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43920 + ... + 45497.

It is an arithmetic number, because the mean of its divisors is an integer number (11803176).

Almost surely, 270550013 is an apocalyptic number.

It is an amenable number.

70550013 is a deficient number, since it is larger than the sum of its proper divisors (23875395).

70550013 is a wasteful number, since it uses less digits than its factorization.

70550013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89683.

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 70550013 is about 8399.4055146778. The cubic root of 70550013 is about 413.2051249229.

The spelling of 70550013 in words is "seventy million, five hundred fifty thousand, thirteen".

Divisors: 1 3 263 789 89417 268251 23516671 70550013