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30851411 = 474311523
BaseRepresentation
bin111010110110…
…0000101010011
32011001102011212
41311230011103
530344221121
63021130335
7523142543
oct165540523
964042155
1030851411
1116462138
12a3b99ab
136512696
144151323
152a9625b
hex1d6c153

30851411 has 8 divisors (see below), whose sum is σ = 31601664. Its totient is φ = 30105160.

The previous prime is 30851399. The next prime is 30851419. The reversal of 30851411 is 11415803.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30851411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30851419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19496 + ... + 21018.

It is an arithmetic number, because the mean of its divisors is an integer number (3950208).

Almost surely, 230851411 is an apocalyptic number.

30851411 is a deficient number, since it is larger than the sum of its proper divisors (750253).

30851411 is a wasteful number, since it uses less digits than its factorization.

30851411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 30851411 is about 5554.4046485650. The cubic root of 30851411 is about 313.6353530000.

The spelling of 30851411 in words is "thirty million, eight hundred fifty-one thousand, four hundred eleven".

Divisors: 1 47 431 1523 20257 71581 656413 30851411