Search a number
-
+
253950992 = 2415871937
BaseRepresentation
bin11110010001011…
…11110000010000
3122200212001021022
433020233300100
51010002412432
641111015012
76202355621
oct1710576020
9580761238
10253950992
11120392159
127106a468
13407c6b79
1425a27a48
1517464b12
hexf22fc10

253950992 has 10 divisors (see below), whose sum is σ = 492030078. Its totient is φ = 126975488.

The previous prime is 253950973. The next prime is 253950997. The reversal of 253950992 is 299059352.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 198359056 + 55591936 = 14084^2 + 7456^2 .

It is a super-2 number, since 2×2539509922 = 128982212675568128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253950997) 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 as a sum of consecutive naturals, namely, 7935953 + ... + 7935984.

Almost surely, 2253950992 is an apocalyptic number.

It is an amenable number.

253950992 is a deficient number, since it is larger than the sum of its proper divisors (238079086).

253950992 is a wasteful number, since it uses less digits than its factorization.

253950992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15871945 (or 15871939 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 44.

The square root of 253950992 is about 15935.8398586331. The cubic root of 253950992 is about 633.2618196876.

The spelling of 253950992 in words is "two hundred fifty-three million, nine hundred fifty thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 15871937 31743874 63487748 126975496 253950992