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70499744 = 257491641
BaseRepresentation
bin1000011001110…
…11110110100000
311220122202110122
410030323312200
5121021442434
610555015412
71514144420
oct414736640
9156582418
1070499744
1136882557
121b73a568
13117b5133
149512480
1562c8c2e
hex433bda0

70499744 has 48 divisors (see below), whose sum is σ = 159195456. Its totient is φ = 30105600.

The previous prime is 70499729. The next prime is 70499753. The reversal of 70499744 is 44799407.

It is a junction number, because it is equal to n+sod(n) for n = 70499695 and 70499704.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 109664 + ... + 110304.

It is an arithmetic number, because the mean of its divisors is an integer number (3316572).

Almost surely, 270499744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70499744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79597728).

70499744 is an abundant number, since it is smaller than the sum of its proper divisors (88695712).

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

70499744 is a wasteful number, since it uses less digits than its factorization.

70499744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 70499744 is about 8396.4125672813. The cubic root of 70499744 is about 413.1069612566.

The spelling of 70499744 in words is "seventy million, four hundred ninety-nine thousand, seven hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 491 641 982 1282 1964 2564 3437 3928 4487 5128 6874 7856 8974 10256 13748 15712 17948 20512 27496 35896 54992 71792 109984 143584 314731 629462 1258924 2203117 2517848 4406234 5035696 8812468 10071392 17624936 35249872 70499744