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70986448 = 2413341281
BaseRepresentation
bin1000011101100…
…10101011010000
311221120111002201
410032302223100
5121133031243
611013252544
71521242401
oct416625320
9157514081
1070986448
1137085195
121b934154
1311925820
1495db9a8
15637304d
hex43b2ad0

70986448 has 20 divisors (see below), whose sum is σ = 148116388. Its totient is φ = 32762880.

The previous prime is 70986361. The next prime is 70986473. The reversal of 70986448 is 84468907.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47444544 + 23541904 = 6888^2 + 4852^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70986398 and 70986407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170433 + ... + 170848.

Almost surely, 270986448 is an apocalyptic number.

It is an amenable number.

70986448 is an abundant number, since it is smaller than the sum of its proper divisors (77129940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70986448 is a wasteful number, since it uses less digits than its factorization.

70986448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341302 (or 341296 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 70986448 is about 8425.3455715478. The cubic root of 70986448 is about 414.0554275560.

The spelling of 70986448 in words is "seventy million, nine hundred eighty-six thousand, four hundred forty-eight".

Divisors: 1 2 4 8 13 16 26 52 104 208 341281 682562 1365124 2730248 4436653 5460496 8873306 17746612 35493224 70986448