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30472248 = 2335212437
BaseRepresentation
bin111010000111…
…1100000111000
32010100011001210
41310033200320
530300102443
63005043120
7520003242
oct164174070
963304053
1030472248
1116223284
12a2564a0
13640bc21
144093092
152a1dc33
hex1d0f838

30472248 has 32 divisors (see below), whose sum is σ = 76358160. Its totient is φ = 10133760.

The previous prime is 30472231. The next prime is 30472249. The reversal of 30472248 is 84227403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472249) 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, 11286 + ... + 13722.

Almost surely, 230472248 is an apocalyptic number.

It is an amenable number.

30472248 is an abundant number, since it is smaller than the sum of its proper divisors (45885912).

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

30472248 is a wasteful number, since it uses less digits than its factorization.

30472248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967 (or 2963 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 30472248 is about 5520.1673887664. The cubic root of 30472248 is about 312.3451965008.

The spelling of 30472248 in words is "thirty million, four hundred seventy-two thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 521 1042 1563 2084 2437 3126 4168 4874 6252 7311 9748 12504 14622 19496 29244 58488 1269677 2539354 3809031 5078708 7618062 10157416 15236124 30472248