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70812448 = 257245161
BaseRepresentation
bin1000011100010…
…00001100100000
311221020122102021
410032020030200
5121111444243
611005431224
71516616200
oct416101440
9157218367
1070812448
1136a76493
121b86b514
1311894575
149594400
15633b6ed
hex4388320

70812448 has 36 divisors (see below), whose sum is σ = 162176742. Its totient is φ = 30347520.

The previous prime is 70812437. The next prime is 70812457. The reversal of 70812448 is 84421807.

It can be written as a sum of positive squares in only one way, i.e., 53406864 + 17405584 = 7308^2 + 4172^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21013 + ... + 24148.

Almost surely, 270812448 is an apocalyptic number.

It is an amenable number.

70812448 is an abundant number, since it is smaller than the sum of its proper divisors (91364294).

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

70812448 is a wasteful number, since it uses less digits than its factorization.

70812448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45185 (or 45170 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 70812448 is about 8415.0132501381. The cubic root of 70812448 is about 413.7168437270.

The spelling of 70812448 in words is "seventy million, eight hundred twelve thousand, four hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 392 784 1568 45161 90322 180644 316127 361288 632254 722576 1264508 1445152 2212889 2529016 4425778 5058032 8851556 10116064 17703112 35406224 70812448