Search a number
-
+
2247930238 = 21123965119
BaseRepresentation
bin1000010111111100…
…1011000101111110
312210122212200120111
42011333023011332
514100432231423
61011020540234
7106464043321
oct20577130576
95718780514
102247930238
11a53997294
125289b167a
1329a943948
141747967b8
15d253860d
hex85fcb17e

2247930238 has 4 divisors (see below), whose sum is σ = 3371895360. Its totient is φ = 1123965118.

The previous prime is 2247930233. The next prime is 2247930259. The reversal of 2247930238 is 8320397422.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2247930238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247930233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561982558 + ... + 561982561.

It is an arithmetic number, because the mean of its divisors is an integer number (842973840).

Almost surely, 22247930238 is an apocalyptic number.

2247930238 is a deficient number, since it is larger than the sum of its proper divisors (1123965122).

2247930238 is a wasteful number, since it uses less digits than its factorization.

2247930238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123965121.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 2247930238 is about 47412.3426757211. The cubic root of 2247930238 is about 1309.9687730256.

The spelling of 2247930238 in words is "two billion, two hundred forty-seven million, nine hundred thirty thousand, two hundred thirty-eight".

Divisors: 1 2 1123965119 2247930238