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70916377 = 721447273
BaseRepresentation
bin1000011101000…
…01100100011001
311221102220222111
410032201210121
5121123311002
611011552321
71520531200
oct416414431
9157386874
1070916377
1137037584
121b8bb6a1
13118cc96c
1495c0237
15635c3d7
hex43a1919

70916377 has 6 divisors (see below), whose sum is σ = 82494618. Its totient is φ = 60785424.

The previous prime is 70916371. The next prime is 70916413. The reversal of 70916377 is 77361907.

It can be written as a sum of positive squares in only one way, i.e., 70913241 + 3136 = 8421^2 + 56^2 .

It is not a de Polignac number, because 70916377 - 23 = 70916369 is a prime.

It is a super-2 number, since 2×709163772 = 10058265053612258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70916371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 723588 + ... + 723685.

It is an arithmetic number, because the mean of its divisors is an integer number (13749103).

Almost surely, 270916377 is an apocalyptic number.

It is an amenable number.

70916377 is a deficient number, since it is larger than the sum of its proper divisors (11578241).

70916377 is a wasteful number, since it uses less digits than its factorization.

70916377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447287 (or 1447280 counting only the distinct ones).

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 70916377 is about 8421.1861991052. The cubic root of 70916377 is about 413.9191441277.

The spelling of 70916377 in words is "seventy million, nine hundred sixteen thousand, three hundred seventy-seven".

Divisors: 1 7 49 1447273 10130911 70916377