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30550465 = 5112512213
BaseRepresentation
bin111010010001…
…0100111000001
32010111010100201
41310202213001
530310103330
63010445201
7520450261
oct164424701
963433321
1030550465
1116277020
12a293801
1364386ca
1440b37a1
152a36eca
hex1d229c1

30550465 has 16 divisors (see below), whose sum is σ = 40170816. Its totient is φ = 22120000.

The previous prime is 30550451. The next prime is 30550477. The reversal of 30550465 is 56405503.

It is not a de Polignac number, because 30550465 - 25 = 30550433 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 12699 + ... + 14911.

It is an arithmetic number, because the mean of its divisors is an integer number (2510676).

Almost surely, 230550465 is an apocalyptic number.

It is an amenable number.

30550465 is a deficient number, since it is larger than the sum of its proper divisors (9620351).

30550465 is a wasteful number, since it uses less digits than its factorization.

30550465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 30550465 is about 5527.2475066709. The cubic root of 30550465 is about 312.6122135678.

Adding to 30550465 its reverse (56405503), we get a palindrome (86955968).

The spelling of 30550465 in words is "thirty million, five hundred fifty thousand, four hundred sixty-five".

Divisors: 1 5 11 55 251 1255 2213 2761 11065 13805 24343 121715 555463 2777315 6110093 30550465