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30051424 = 2513294753
BaseRepresentation
bin111001010100…
…0110001100000
32002112202210201
41302220301200
530143121144
62552034544
7513301324
oct162506140
962482721
1030051424
1115a66097
12a092a54
1362c2510
143dc3984
1529891d4
hex1ca8c60

30051424 has 96 divisors (see below), whose sum is σ = 68584320. Its totient is φ = 12859392.

The previous prime is 30051419. The next prime is 30051433. The reversal of 30051424 is 42415003.

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, 566982 + ... + 567034.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 230051424 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 30051424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34292160).

30051424 is an abundant number, since it is smaller than the sum of its proper divisors (38532896).

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

30051424 is a wasteful number, since it uses less digits than its factorization.

30051424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30051424 is about 5481.9179125558. The cubic root of 30051424 is about 310.9006896097.

Adding to 30051424 its reverse (42415003), we get a palindrome (72466427).

The spelling of 30051424 in words is "thirty million, fifty-one thousand, four hundred twenty-four".

Divisors: 1 2 4 8 13 16 26 29 32 47 52 53 58 94 104 106 116 188 208 212 232 376 377 416 424 464 611 689 752 754 848 928 1222 1363 1378 1504 1508 1537 1696 2444 2491 2726 2756 3016 3074 4888 4982 5452 5512 6032 6148 9776 9964 10904 11024 12064 12296 17719 19552 19928 19981 21808 22048 24592 32383 35438 39856 39962 43616 49184 64766 70876 72239 79712 79924 129532 141752 144478 159848 259064 283504 288956 319696 518128 567008 577912 639392 939107 1036256 1155824 1878214 2311648 3756428 7512856 15025712 30051424