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30274712 = 2313291103
BaseRepresentation
bin111001101111…
…1010010011000
32002222010002122
41303133102120
530222242322
63000520412
7515221316
oct163372230
962863078
1030274712
11160a8926
12a180108
136370040
1440410b6
1529d0442
hex1cdf498

30274712 has 16 divisors (see below), whose sum is σ = 61131840. Its totient is φ = 13972896.

The previous prime is 30274711. The next prime is 30274747. The reversal of 30274712 is 21747203.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30274711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145448 + ... + 145655.

It is an arithmetic number, because the mean of its divisors is an integer number (3820740).

Almost surely, 230274712 is an apocalyptic number.

It is an amenable number.

30274712 is an abundant number, since it is smaller than the sum of its proper divisors (30857128).

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

30274712 is a wasteful number, since it uses less digits than its factorization.

30274712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291122 (or 291118 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 30274712 is about 5502.2460868267. The cubic root of 30274712 is about 311.6688081042.

The spelling of 30274712 in words is "thirty million, two hundred seventy-four thousand, seven hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 291103 582206 1164412 2328824 3784339 7568678 15137356 30274712