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30252894 = 2372176053
BaseRepresentation
bin111001101100…
…1111101011110
32002221000011120
41303121331132
530221043034
63000231410
7515100600
oct163317536
962830146
1030252894
11160934a1
12a16b566
136363129
144037170
1529c8c49
hex1cd9f5e

30252894 has 48 divisors (see below), whose sum is σ = 74536848. Its totient is φ = 8133888.

The previous prime is 30252881. The next prime is 30252923. The reversal of 30252894 is 49825203.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1972 + ... + 8024.

It is an arithmetic number, because the mean of its divisors is an integer number (1552851).

Almost surely, 230252894 is an apocalyptic number.

30252894 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30252894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37268424).

30252894 is an abundant number, since it is smaller than the sum of its proper divisors (44283954).

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

30252894 is a wasteful number, since it uses less digits than its factorization.

30252894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089 (or 6082 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 30252894 is about 5500.2630846170. The cubic root of 30252894 is about 311.5939202548.

The spelling of 30252894 in words is "thirty million, two hundred fifty-two thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 7 14 17 21 34 42 49 51 98 102 119 147 238 294 357 714 833 1666 2499 4998 6053 12106 18159 36318 42371 84742 102901 127113 205802 254226 296597 308703 593194 617406 720307 889791 1440614 1779582 2160921 4321842 5042149 10084298 15126447 30252894