Search a number
-
+
307271222 = 21069143719
BaseRepresentation
bin10010010100001…
…001011000110110
3210102011222212122
4102110021120312
51112130134342
650253515542
710420522316
oct2224113066
9712158778
10307271222
111484a0465
1286aa2bb2
134b8755bb
142cb47446
151be984d2
hex12509636

307271222 has 8 divisors (see below), whose sum is σ = 461341200. Its totient is φ = 153490824.

The previous prime is 307271207. The next prime is 307271231. The reversal of 307271222 is 222172703.

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

It is a junction number, because it is equal to n+sod(n) for n = 307271191 and 307271200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69722 + ... + 73997.

It is an arithmetic number, because the mean of its divisors is an integer number (57667650).

Almost surely, 2307271222 is an apocalyptic number.

307271222 is a deficient number, since it is larger than the sum of its proper divisors (154069978).

307271222 is a wasteful number, since it uses less digits than its factorization.

307271222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144790.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 307271222 is about 17529.1534878328. The cubic root of 307271222 is about 674.7982731438.

The spelling of 307271222 in words is "three hundred seven million, two hundred seventy-one thousand, two hundred twenty-two".

Divisors: 1 2 1069 2138 143719 287438 153635611 307271222