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30707132 = 227676783
BaseRepresentation
bin111010100100…
…0110110111100
32010210002021012
41311020312330
530330112012
63014054352
7522002111
oct165106674
963702235
1030707132
11163737a5
12a34a3b8
136491b01
144114908
152a68622
hex1d48dbc

30707132 has 6 divisors (see below), whose sum is σ = 53737488. Its totient is φ = 15353564.

The previous prime is 30707129. The next prime is 30707137. The reversal of 30707132 is 23170703.

It is a junction number, because it is equal to n+sod(n) for n = 30707098 and 30707107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30707137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3838388 + ... + 3838395.

It is an arithmetic number, because the mean of its divisors is an integer number (8956248).

Almost surely, 230707132 is an apocalyptic number.

It is an amenable number.

30707132 is a deficient number, since it is larger than the sum of its proper divisors (23030356).

30707132 is a wasteful number, since it uses less digits than its factorization.

30707132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676787 (or 7676785 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 30707132 is about 5541.4016277473. The cubic root of 30707132 is about 313.1456755710.

Adding to 30707132 its reverse (23170703), we get a palindrome (53877835).

The spelling of 30707132 in words is "thirty million, seven hundred seven thousand, one hundred thirty-two".

Divisors: 1 2 4 7676783 15353566 30707132