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30496380 = 2235508273
BaseRepresentation
bin111010001010…
…1011001111100
32010101101011120
41310111121330
530301341010
63005350540
7520133505
oct164253174
963341146
1030496380
111623a422
12a268450
136419bc5
14409bbac
152a25e70
hex1d1567c

30496380 has 24 divisors (see below), whose sum is σ = 85390032. Its totient is φ = 8132352.

The previous prime is 30496379. The next prime is 30496393. The reversal of 30496380 is 8369403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254077 + ... + 254196.

It is an arithmetic number, because the mean of its divisors is an integer number (3557918).

Almost surely, 230496380 is an apocalyptic number.

30496380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30496380 is an abundant number, since it is smaller than the sum of its proper divisors (54893652).

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

30496380 is a wasteful number, since it uses less digits than its factorization.

30496380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508285 (or 508283 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 30496380 is about 5522.3527594677. The cubic root of 30496380 is about 312.4276269735.

It can be divided in two parts, 30496 and 380, that added together give a triangular number (30876 = T248).

The spelling of 30496380 in words is "thirty million, four hundred ninety-six thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 508273 1016546 1524819 2033092 2541365 3049638 5082730 6099276 7624095 10165460 15248190 30496380