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4970781 = 33712593
BaseRepresentation
bin10010111101100100011101
3100100112122000
4102331210131
52233031111
6254312513
760152034
oct22754435
910315560
104970781
112895692
1217b8739
1310506ba
1493571b
15682c56
hex4bd91d

4970781 has 16 divisors (see below), whose sum is σ = 7470720. Its totient is φ = 3265920.

The previous prime is 4970773. The next prime is 4970827. The reversal of 4970781 is 1870794.

It is not a de Polignac number, because 4970781 - 23 = 4970773 is a prime.

It is a super-2 number, since 2×49707812 = 49417327499922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

4970781 is a modest number, since divided by 781 gives 497 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4970701) 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, 621 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (466920).

Almost surely, 24970781 is an apocalyptic number.

It is an amenable number.

4970781 is a deficient number, since it is larger than the sum of its proper divisors (2499939).

4970781 is a wasteful number, since it uses less digits than its factorization.

4970781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 4970781 is about 2229.5248372691. The cubic root of 4970781 is about 170.6638517975.

The spelling of 4970781 in words is "four million, nine hundred seventy thousand, seven hundred eighty-one".

Divisors: 1 3 9 27 71 213 639 1917 2593 7779 23337 70011 184103 552309 1656927 4970781