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302013323031 = 3714381586811
BaseRepresentation
bin1000110010100010110…
…01011001011100010111
31001212112211100102201210
410121101121121130113
514422010402314111
6350424253352503
730551112613650
oct4312131313427
91055484312653
10302013323031
111070a0713732
124a647798733
1322630c8c204
14108906a8527
157cc93040a6
hex4651659717

302013323031 has 8 divisors (see below), whose sum is σ = 460210777984. Its totient is φ = 172579041720.

The previous prime is 302013323011. The next prime is 302013323033. The reversal of 302013323031 is 130323310203.

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

It is not a de Polignac number, because 302013323031 - 29 = 302013322519 is a prime.

It is a super-2 number, since 2×3020133230312 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 14381586811 = 302013323031 / (3 + 0 + 2 + 0 + 1 + 3 + 3 + 2 + 3 + 0 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302013322989 and 302013323007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302013323033) 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, 7190793385 + ... + 7190793426.

It is an arithmetic number, because the mean of its divisors is an integer number (57526347248).

Almost surely, 2302013323031 is an apocalyptic number.

302013323031 is a deficient number, since it is larger than the sum of its proper divisors (158197454953).

302013323031 is a wasteful number, since it uses less digits than its factorization.

302013323031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14381586821.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 302013323031 its reverse (130323310203), we get a palindrome (432336633234).

The spelling of 302013323031 in words is "three hundred two billion, thirteen million, three hundred twenty-three thousand, thirty-one".

Divisors: 1 3 7 21 14381586811 43144760433 100671107677 302013323031