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30312414 = 2331151031
BaseRepresentation
bin111001110100…
…0011111011110
32010001000211000
41303220133132
530224444124
63001411130
7515436246
oct163503736
963030730
1030312414
1116124190
12a199aa6
136384252
144050b26
1529db6c9
hex1ce87de

30312414 has 32 divisors (see below), whose sum is σ = 73486080. Its totient is φ = 9185400.

The previous prime is 30312409. The next prime is 30312437. The reversal of 30312414 is 41421303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24922 + ... + 26109.

It is an arithmetic number, because the mean of its divisors is an integer number (2296440).

Almost surely, 230312414 is an apocalyptic number.

30312414 is an abundant number, since it is smaller than the sum of its proper divisors (43173666).

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

30312414 is a wasteful number, since it uses less digits than its factorization.

30312414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51053 (or 51047 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30312414 is about 5505.6710762631. The cubic root of 30312414 is about 311.7981312503.

Adding to 30312414 its reverse (41421303), we get a palindrome (71733717).

Subtracting 30312414 from its reverse (41421303), we obtain a square (11108889 = 33332).

It can be divided in two parts, 3031 and 2414, that added together give a palindrome (5445).

The spelling of 30312414 in words is "thirty million, three hundred twelve thousand, four hundred fourteen".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 51031 102062 153093 306186 459279 561341 918558 1122682 1377837 1684023 2755674 3368046 5052069 10104138 15156207 30312414