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30416380 = 2254433433
BaseRepresentation
bin111010000000…
…1110111111100
32010020022102121
41310001313330
530241311010
63003532324
7516351331
oct164016774
963208377
1030416380
1116195305
12a22a0a4
1363bc677
14407a988
152a0c3da
hex1d01dfc

30416380 has 24 divisors (see below), whose sum is σ = 64037232. Its totient is φ = 12135552.

The previous prime is 30416371. The next prime is 30416381. The reversal of 30416380 is 8361403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30416381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7144 + ... + 10576.

It is an arithmetic number, because the mean of its divisors is an integer number (2668218).

Almost surely, 230416380 is an apocalyptic number.

It is an amenable number.

30416380 is an abundant number, since it is smaller than the sum of its proper divisors (33620852).

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

30416380 is a wasteful number, since it uses less digits than its factorization.

30416380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30416380 is about 5515.1047134211. The cubic root of 30416380 is about 312.1541945473.

Adding to 30416380 its reverse (8361403), we get a palindrome (38777783).

The spelling of 30416380 in words is "thirty million, four hundred sixteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 443 886 1772 2215 3433 4430 6866 8860 13732 17165 34330 68660 1520819 3041638 6083276 7604095 15208190 30416380