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30088285 = 56017657
BaseRepresentation
bin111001011000…
…1110001011101
32002121122100221
41302301301131
530200311120
62552521341
7513513643
oct162616135
962548327
1030088285
1115a90857
12a0b0251
136306226
143dd3193
1529950aa
hex1cb1c5d

30088285 has 4 divisors (see below), whose sum is σ = 36105948. Its totient is φ = 24070624.

The previous prime is 30088273. The next prime is 30088297. The reversal of 30088285 is 58288003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58288003 = 232534261.

It is an interprime number because it is at equal distance from previous prime (30088273) and next prime (30088297).

It can be written as a sum of positive squares in 2 ways, for example, as 21874329 + 8213956 = 4677^2 + 2866^2 .

It is a cyclic number.

It is not a de Polignac number, because 30088285 - 215 = 30055517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30088285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3008824 + ... + 3008833.

It is an arithmetic number, because the mean of its divisors is an integer number (9026487).

Almost surely, 230088285 is an apocalyptic number.

It is an amenable number.

30088285 is a deficient number, since it is larger than the sum of its proper divisors (6017663).

30088285 is an equidigital number, since it uses as much as digits as its factorization.

30088285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017662.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 30088285 is about 5485.2789354781. The cubic root of 30088285 is about 311.0277543356.

The spelling of 30088285 in words is "thirty million, eighty-eight thousand, two hundred eighty-five".

Divisors: 1 5 6017657 30088285