Search a number
-
+
270015631 = 1914211349
BaseRepresentation
bin10000000110000…
…001110010001111
3200211002012210221
4100012001302033
51023111000011
642443212211
76456044404
oct2006016217
9624065727
10270015631
11129464816
1276517067
1343c2cc82
1427c0a2ab
1518a89971
hex10181c8f

270015631 has 4 divisors (see below), whose sum is σ = 284227000. Its totient is φ = 255804264.

The previous prime is 270015623. The next prime is 270015637. The reversal of 270015631 is 136510072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 270015631 - 23 = 270015623 is a prime.

It is a super-2 number, since 2×2700156312 = 145816881968656322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 270015596 and 270015605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270015637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7105656 + ... + 7105693.

It is an arithmetic number, because the mean of its divisors is an integer number (71056750).

Almost surely, 2270015631 is an apocalyptic number.

270015631 is a deficient number, since it is larger than the sum of its proper divisors (14211369).

270015631 is a wasteful number, since it uses less digits than its factorization.

270015631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14211368.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 270015631 is about 16432.1523544544. The cubic root of 270015631 is about 646.3428793499.

The spelling of 270015631 in words is "two hundred seventy million, fifteen thousand, six hundred thirty-one".

Divisors: 1 19 14211349 270015631