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30540066 = 237696619
BaseRepresentation
bin111010010000…
…0000100100010
32010110121002120
41310200010202
530304240231
63010325110
7520405044
oct164400442
963417076
1030540066
111626a227
12a289796
136433a5b
1440ada94
152a33d96
hex1d20122

30540066 has 16 divisors (see below), whose sum is σ = 61168800. Its totient is φ = 10165248.

The previous prime is 30540017. The next prime is 30540079. The reversal of 30540066 is 66004503.

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, 1305 + ... + 7923.

It is an arithmetic number, because the mean of its divisors is an integer number (3823050).

Almost surely, 230540066 is an apocalyptic number.

30540066 is an abundant number, since it is smaller than the sum of its proper divisors (30628734).

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

30540066 is a wasteful number, since it uses less digits than its factorization.

30540066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7393.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 30540066 is about 5526.3067233008. The cubic root of 30540066 is about 312.5767397670.

Adding to 30540066 its reverse (66004503), we get a palindrome (96544569).

The spelling of 30540066 in words is "thirty million, five hundred forty thousand, sixty-six".

Divisors: 1 2 3 6 769 1538 2307 4614 6619 13238 19857 39714 5090011 10180022 15270033 30540066