Search a number
-
+
30502488 = 2331774761
BaseRepresentation
bin111010001011…
…0111001011000
32010101200112210
41310112321120
530302034423
63005435120
7520160352
oct164267130
963350483
1030502488
1116243a75
12a26baa0
13641c913
1440a00d2
152a27b93
hex1d16e58

30502488 has 32 divisors (see below), whose sum is σ = 80742960. Its totient is φ = 9569280.

The previous prime is 30502447. The next prime is 30502489. The reversal of 30502488 is 88420503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30502489) 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, 36973 + ... + 37788.

Almost surely, 230502488 is an apocalyptic number.

It is an amenable number.

30502488 is an abundant number, since it is smaller than the sum of its proper divisors (50240472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30502488 is a wasteful number, since it uses less digits than its factorization.

30502488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74787 (or 74783 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 30502488 is about 5522.9057569363. The cubic root of 30502488 is about 312.4484838813.

The spelling of 30502488 in words is "thirty million, five hundred two thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 74761 149522 224283 299044 448566 598088 897132 1270937 1794264 2541874 3812811 5083748 7625622 10167496 15251244 30502488