Search a number
-
+
247020742 = 2373331127
BaseRepresentation
bin11101011100100…
…11110011000110
3122012210221202101
432232103303012
51001214130432
640302302314
76056433043
oct1656236306
9565727671
10247020742
11117489381
126a88799a
133c23b627
1424b421ca
1516a464e7
hexeb93cc6

247020742 has 8 divisors (see below), whose sum is σ = 371525616. Its totient is φ = 123178872.

The previous prime is 247020737. The next prime is 247020743.

247020742 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2470207422 = 122038493956461128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247020742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247020743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164818 + ... + 166309.

It is an arithmetic number, because the mean of its divisors is an integer number (46440702).

Almost surely, 2247020742 is an apocalyptic number.

247020742 is a deficient number, since it is larger than the sum of its proper divisors (124504874).

247020742 is a wasteful number, since it uses less digits than its factorization.

247020742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331502.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 247020742 is about 15716.8935225763. The cubic root of 247020742 is about 627.4480982241.

The spelling of 247020742 in words is "two hundred forty-seven million, twenty thousand, seven hundred forty-two".

Divisors: 1 2 373 746 331127 662254 123510371 247020742