Search a number
-
+
30373620 = 22354112347
BaseRepresentation
bin111001111011…
…1011011110100
32010011010202220
41303313123310
530233423440
63003002340
7516112554
oct163673364
963133686
1030373620
1116166172
12a2093b0
1363a6074
144069164
1529ee8d0
hex1cf76f4

30373620 has 48 divisors (see below), whose sum is σ = 87127488. Its totient is φ = 7901440.

The previous prime is 30373619. The next prime is 30373627. The reversal of 30373620 is 2637303.

It is a super-4 number, since 4×303736204 (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30373627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3714 + ... + 8633.

It is an arithmetic number, because the mean of its divisors is an integer number (1815156).

Almost surely, 230373620 is an apocalyptic number.

30373620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30373620 is an abundant number, since it is smaller than the sum of its proper divisors (56753868).

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

30373620 is a wasteful number, since it uses less digits than its factorization.

30373620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12400 (or 12398 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 24.

The square root of 30373620 is about 5511.2267236977. The cubic root of 30373620 is about 312.0078482575.

The spelling of 30373620 in words is "thirty million, three hundred seventy-three thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 12347 24694 37041 49388 61735 74082 123470 148164 185205 246940 370410 506227 740820 1012454 1518681 2024908 2531135 3037362 5062270 6074724 7593405 10124540 15186810 30373620