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70940743 = 617389179
BaseRepresentation
bin1000011101001…
…11100001000111
311221111011101221
410032213201013
5121130100433
611012301211
71520662216
oct416474107
9157434357
1070940743
1137053915
121b911807
131190aa93
1495c907d
15636472d
hex43a7847

70940743 has 16 divisors (see below), whose sum is σ = 74325600. Its totient is φ = 67668480.

The previous prime is 70940707. The next prime is 70940747. The reversal of 70940743 is 34704907.

It is not a de Polignac number, because 70940743 - 29 = 70940231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70940699 and 70940708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70940747) 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 15 ways as a sum of consecutive naturals, for example, 396228 + ... + 396406.

It is an arithmetic number, because the mean of its divisors is an integer number (4645350).

Almost surely, 270940743 is an apocalyptic number.

70940743 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

70940743 is a deficient number, since it is larger than the sum of its proper divisors (3384857).

70940743 is a wasteful number, since it uses less digits than its factorization.

70940743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 70940743 is about 8422.6327831623. The cubic root of 70940743 is about 413.9665445516.

The spelling of 70940743 in words is "seventy million, nine hundred forty thousand, seven hundred forty-three".

Divisors: 1 61 73 89 179 4453 5429 6497 10919 13067 15931 396317 797087 971791 1162963 70940743