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553242641 = 779034663
BaseRepresentation
bin100000111110011…
…101000000010001
31102120000122020012
4200332131000101
52113112231031
6130521524305
716465325210
oct4076350021
91376018205
10553242641
11264322426
12135343695
138a807413
1453695077
1533883b2b
hex20f9d011

553242641 has 4 divisors (see below), whose sum is σ = 632277312. Its totient is φ = 474207972.

The previous prime is 553242637. The next prime is 553242653. The reversal of 553242641 is 146242355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 553242641 - 22 = 553242637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553242598 and 553242607.

It is not an unprimeable number, because it can be changed into a prime (553242631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39517325 + ... + 39517338.

It is an arithmetic number, because the mean of its divisors is an integer number (158069328).

Almost surely, 2553242641 is an apocalyptic number.

It is an amenable number.

553242641 is a deficient number, since it is larger than the sum of its proper divisors (79034671).

553242641 is an equidigital number, since it uses as much as digits as its factorization.

553242641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79034670.

The product of its digits is 28800, while the sum is 32.

The square root of 553242641 is about 23521.1105392581. The cubic root of 553242641 is about 820.9282770288.

Adding to 553242641 its reverse (146242355), we get a palindrome (699484996).

The spelling of 553242641 in words is "five hundred fifty-three million, two hundred forty-two thousand, six hundred forty-one".

Divisors: 1 7 79034663 553242641