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253101682 = 2373420293
BaseRepresentation
bin11110001011000…
…00011001110010
3122122020220020101
433011200121302
51004243223212
641040503014
76162220531
oct1705403162
9578226211
10253101682
1111a962049
127091aa6a
134058a412
1425886318
1517348157
hexf160672

253101682 has 8 divisors (see below), whose sum is σ = 389913516. Its totient is φ = 123130512.

The previous prime is 253101677. The next prime is 253101689. The reversal of 253101682 is 286101352.

It can be written as a sum of positive squares in 2 ways, for example, as 217592001 + 35509681 = 14751^2 + 5959^2 .

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

It is a super-2 number, since 2×2531016822 = 128120922862458248, 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 253101682.

It is not an unprimeable number, because it can be changed into a prime (253101689) 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 in 3 ways as a sum of consecutive naturals, for example, 1710073 + ... + 1710220.

Almost surely, 2253101682 is an apocalyptic number.

253101682 is a deficient number, since it is larger than the sum of its proper divisors (136811834).

253101682 is a wasteful number, since it uses less digits than its factorization.

253101682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420332.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 253101682 is about 15909.1697457787. The cubic root of 253101682 is about 632.5550740214. Note that the first 3 decimals are identical.

The spelling of 253101682 in words is "two hundred fifty-three million, one hundred one thousand, six hundred eighty-two".

Divisors: 1 2 37 74 3420293 6840586 126550841 253101682