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70918441 = 1117478069
BaseRepresentation
bin1000011101000…
…10000100101001
311221110000210221
410032202010221
5121123342231
611012010041
71520540206
oct416420451
9157400727
1070918441
1137039090
121b900921
1311900899
1495c0cad
15635cd11
hex43a2129

70918441 has 16 divisors (see below), whose sum is σ = 83669760. Its totient is φ = 59380480.

The previous prime is 70918439. The next prime is 70918457. The reversal of 70918441 is 14481907.

It is a cyclic number.

It is not a de Polignac number, because 70918441 - 21 = 70918439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70918397 and 70918406.

It is not an unprimeable number, because it can be changed into a prime (70918411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4755 + ... + 12823.

It is an arithmetic number, because the mean of its divisors is an integer number (5229360).

Almost surely, 270918441 is an apocalyptic number.

It is an amenable number.

70918441 is a deficient number, since it is larger than the sum of its proper divisors (12751319).

70918441 is a wasteful number, since it uses less digits than its factorization.

70918441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8144.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 70918441 is about 8421.3087462698. The cubic root of 70918441 is about 413.9231597532.

The spelling of 70918441 in words is "seventy million, nine hundred eighteen thousand, four hundred forty-one".

Divisors: 1 11 17 47 187 517 799 8069 8789 88759 137173 379243 1508903 4171673 6447131 70918441