Search a number
-
+
1022013031 = 13229343303
BaseRepresentation
bin111100111010101…
…010111001100111
32122020002122022111
4330322222321213
54043113404111
6245225141451
734216652554
oct7472527147
92566078274
101022013031
11484999576
1224632a887
13133976950
1499a3ba2b
155eacda21
hex3ceaae67

1022013031 has 8 divisors (see below), whose sum is σ = 1105438880. Its totient is φ = 939274272.

The previous prime is 1022013029. The next prime is 1022013079. The reversal of 1022013031 is 1303102201.

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

It is a cyclic number.

It is not a de Polignac number, because 1022013031 - 21 = 1022013029 is a prime.

It is a super-2 number, since 2×10220130312 = 2089021271067613922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022013011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168675 + ... + 174628.

It is an arithmetic number, because the mean of its divisors is an integer number (138179860).

Almost surely, 21022013031 is an apocalyptic number.

1022013031 is a deficient number, since it is larger than the sum of its proper divisors (83425849).

1022013031 is a wasteful number, since it uses less digits than its factorization.

1022013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343545.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1022013031 is about 31968.9385341459. The cubic root of 1022013031 is about 1007.2844844392.

Adding to 1022013031 its reverse (1303102201), we get a palindrome (2325115232).

The spelling of 1022013031 in words is "one billion, twenty-two million, thirteen thousand, thirty-one".

Divisors: 1 13 229 2977 343303 4462939 78616387 1022013031