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30540862 = 21113710133
BaseRepresentation
bin111010010000…
…0010000111110
32010110122012001
41310200100332
530304301422
63010332514
7520410262
oct164402076
963418161
1030540862
111626a890
12a28a13a
136434221
1440b00a2
152a34227
hex1d2043e

30540862 has 16 divisors (see below), whose sum is σ = 50345712. Its totient is φ = 13779520.

The previous prime is 30540817. The next prime is 30540877. The reversal of 30540862 is 26804503.

It is a self number, because there is not a number n which added to its sum of digits gives 30540862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2053 + ... + 8080.

It is an arithmetic number, because the mean of its divisors is an integer number (3146607).

Almost surely, 230540862 is an apocalyptic number.

30540862 is a deficient number, since it is larger than the sum of its proper divisors (19804850).

30540862 is a wasteful number, since it uses less digits than its factorization.

30540862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10283.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 30540862 is about 5526.3787419973. The cubic root of 30540862 is about 312.5794554228.

The spelling of 30540862 in words is "thirty million, five hundred forty thousand, eight hundred sixty-two".

Divisors: 1 2 11 22 137 274 1507 3014 10133 20266 111463 222926 1388221 2776442 15270431 30540862