Search a number
-
+
30481652 = 2216346751
BaseRepresentation
bin111010001000…
…1110011110100
32010100121222002
41310101303310
530300403102
63005154432
7520042535
oct164216364
963317862
1030481652
111622a353
12a25ba18
1364132a6
14409668c
152a21902
hex1d11cf4

30481652 has 12 divisors (see below), whose sum is σ = 53671296. Its totient is φ = 15147000.

The previous prime is 30481631. The next prime is 30481657. The reversal of 30481652 is 25618403.

It is a super-2 number, since 2×304816522 = 1858262217298208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30481657) 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 3 ways as a sum of consecutive naturals, for example, 22724 + ... + 24027.

It is an arithmetic number, because the mean of its divisors is an integer number (4472608).

Almost surely, 230481652 is an apocalyptic number.

It is an amenable number.

30481652 is a deficient number, since it is larger than the sum of its proper divisors (23189644).

30481652 is a wasteful number, since it uses less digits than its factorization.

30481652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46918 (or 46916 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30481652 is about 5521.0191088240. The cubic root of 30481652 is about 312.3773240082.

The spelling of 30481652 in words is "thirty million, four hundred eighty-one thousand, six hundred fifty-two".

Divisors: 1 2 4 163 326 652 46751 93502 187004 7620413 15240826 30481652