Search a number
-
+
30840802429 = 712711602869
BaseRepresentation
bin11100101110010000…
…010100110001111101
32221121100102002110211
4130232100110301331
51001130221134204
622100145232421
72141156331613
oct345620246175
987540362424
1030840802429
1112096913378
125b88632711
132ba6632b28
1416c7d956b3
15c07860804
hex72e414c7d

30840802429 has 8 divisors (see below), whose sum is σ = 31390606080. Its totient is φ = 30294205200.

The previous prime is 30840802393. The next prime is 30840802453. The reversal of 30840802429 is 92420804803.

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 30840802429 - 29 = 30840801917 is a prime.

It is a super-2 number, since 2×308408024292 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30840802391 and 30840802400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30840802459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782194 + ... + 820675.

It is an arithmetic number, because the mean of its divisors is an integer number (3923825760).

Almost surely, 230840802429 is an apocalyptic number.

It is an amenable number.

30840802429 is a deficient number, since it is larger than the sum of its proper divisors (549803651).

30840802429 is a wasteful number, since it uses less digits than its factorization.

30840802429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603211.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 30840802429 in words is "thirty billion, eight hundred forty million, eight hundred two thousand, four hundred twenty-nine".

Divisors: 1 71 271 19241 1602869 113803699 434377499 30840802429