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30520002 = 2319132659
BaseRepresentation
bin111010001101…
…1001011000010
32010102120120110
41310123023002
530303120002
63010052150
7520262412
oct164331302
963376513
1030520002
1116256147
12a27a056
136427896
1440a6642
152a2ce6c
hex1d1b2c2

30520002 has 16 divisors (see below), whose sum is σ = 61094880. Its totient is φ = 10164192.

The previous prime is 30519959. The next prime is 30520019. The reversal of 30520002 is 20002503.

It is a self number, because there is not a number n which added to its sum of digits gives 30520002.

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, 10149 + ... + 12807.

It is an arithmetic number, because the mean of its divisors is an integer number (3818430).

Almost surely, 230520002 is an apocalyptic number.

30520002 is an abundant number, since it is smaller than the sum of its proper divisors (30574878).

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

30520002 is a wasteful number, since it uses less digits than its factorization.

30520002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577.

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 30520002 is about 5524.4911077854. The cubic root of 30520002 is about 312.5082732743.

Adding to 30520002 its reverse (20002503), we get a palindrome (50522505).

The spelling of 30520002 in words is "thirty million, five hundred twenty thousand, two".

Divisors: 1 2 3 6 1913 2659 3826 5318 5739 7977 11478 15954 5086667 10173334 15260001 30520002