Search a number
-
+
1242221570 = 25124222157
BaseRepresentation
bin100101000001010…
…1100110000000010
310012120110101122022
41022002230300002
510021002042240
6323133041442
742532465142
oct11202546002
93176411568
101242221570
115882244a7
122a8026282
1316a488265
14bada0922
15740ca9b5
hex4a0acc02

1242221570 has 8 divisors (see below), whose sum is σ = 2235998844. Its totient is φ = 496888624.

The previous prime is 1242221557. The next prime is 1242221593. The reversal of 1242221570 is 751222421.

It can be written as a sum of positive squares in 2 ways, for example, as 1158517369 + 83704201 = 34037^2 + 9149^2 .

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

It is a super-2 number, since 2×12422215702 = 3086228857946529800, which contains 22 as substring.

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, 62111069 + ... + 62111088.

Almost surely, 21242221570 is an apocalyptic number.

1242221570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242221570 is a deficient number, since it is larger than the sum of its proper divisors (993777274).

1242221570 is a wasteful number, since it uses less digits than its factorization.

1242221570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124222164.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 1242221570 is about 35245.1637817162. The cubic root of 1242221570 is about 1074.9782782703.

Adding to 1242221570 its reverse (751222421), we get a palindrome (1993443991).

The spelling of 1242221570 in words is "one billion, two hundred forty-two million, two hundred twenty-one thousand, five hundred seventy".

Divisors: 1 2 5 10 124222157 248444314 621110785 1242221570