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30214392 = 23313113857
BaseRepresentation
bin111001101000…
…0100011111000
32002212001100120
41303100203320
530213330032
62555333240
7514550415
oct163204370
962761316
1030214392
111606757a
12a151220
13634b750
14402710c
1529bc62c
hex1cd08f8

30214392 has 64 divisors (see below), whose sum is σ = 82162080. Its totient is φ = 9203712.

The previous prime is 30214363. The next prime is 30214397. The reversal of 30214392 is 29341203.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30214397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34828 + ... + 35684.

Almost surely, 230214392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30214392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41081040).

30214392 is an abundant number, since it is smaller than the sum of its proper divisors (51947688).

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

30214392 is a wasteful number, since it uses less digits than its factorization.

30214392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30214392 is about 5496.7619559155. The cubic root of 30214392 is about 311.4616785578.

Adding to 30214392 its reverse (29341203), we get a palindrome (59555595).

The spelling of 30214392 in words is "thirty million, two hundred fourteen thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 113 156 226 312 339 452 678 857 904 1356 1469 1714 2571 2712 2938 3428 4407 5142 5876 6856 8814 10284 11141 11752 17628 20568 22282 33423 35256 44564 66846 89128 96841 133692 193682 267384 290523 387364 581046 774728 1162092 1258933 2324184 2517866 3776799 5035732 7553598 10071464 15107196 30214392