Search a number
-
+
30488151 = 310162717
BaseRepresentation
bin111010001001…
…1011001010111
32010100221212210
41310103121113
530301110101
63005244503
7520100511
oct164233127
963327783
1030488151
1116234221
12a263733
136416235
144098bb1
152a237d6
hex1d13657

30488151 has 4 divisors (see below), whose sum is σ = 40650872. Its totient is φ = 20325432.

The previous prime is 30488131. The next prime is 30488173. The reversal of 30488151 is 15188403.

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

It is not a de Polignac number, because 30488151 - 25 = 30488119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30488131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5081356 + ... + 5081361.

It is an arithmetic number, because the mean of its divisors is an integer number (10162718).

Almost surely, 230488151 is an apocalyptic number.

30488151 is a deficient number, since it is larger than the sum of its proper divisors (10162721).

30488151 is a wasteful number, since it uses less digits than its factorization.

30488151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10162720.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 30488151 is about 5521.6076463291. The cubic root of 30488151 is about 312.3995231109.

The spelling of 30488151 in words is "thirty million, four hundred eighty-eight thousand, one hundred fifty-one".

Divisors: 1 3 10162717 30488151