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30553248 = 2531128933
BaseRepresentation
bin111010010001…
…1010010100000
32010111021011210
41310203102200
530310200443
63010510120
7520461345
oct164432240
963437153
1030553248
1116279120
12a295340
136439a5b
1440b47cc
152a37c33
hex1d234a0

30553248 has 48 divisors (see below), whose sum is σ = 87496416. Its totient is φ = 9258240.

The previous prime is 30553247. The next prime is 30553249. The reversal of 30553248 is 84235503.

It is an interprime number because it is at equal distance from previous prime (30553247) and next prime (30553249).

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (30553247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13411 + ... + 15522.

It is an arithmetic number, because the mean of its divisors is an integer number (1822842).

Almost surely, 230553248 is an apocalyptic number.

It is an amenable number.

30553248 is an abundant number, since it is smaller than the sum of its proper divisors (56943168).

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

30553248 is a wasteful number, since it uses less digits than its factorization.

30553248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28957 (or 28949 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 30553248 is about 5527.4992537313. The cubic root of 30553248 is about 312.6217057678.

The spelling of 30553248 in words is "thirty million, five hundred fifty-three thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 28933 57866 86799 115732 173598 231464 318263 347196 462928 636526 694392 925856 954789 1273052 1388784 1909578 2546104 2777568 3819156 5092208 7638312 10184416 15276624 30553248