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30490048 = 26476407
BaseRepresentation
bin111010001001…
…1110111000000
32010101001111001
41310103313000
530301140143
63005301344
7520106161
oct164236700
963331431
1030490048
1116235696
12a264854
136417064
144099768
152a2414d
hex1d13dc0

30490048 has 14 divisors (see below), whose sum is σ = 60503816. Its totient is φ = 15244992.

The previous prime is 30490043. The next prime is 30490051. The reversal of 30490048 is 84009403.

It is a junction number, because it is equal to n+sod(n) for n = 30489998 and 30490025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30490043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238140 + ... + 238267.

Almost surely, 230490048 is an apocalyptic number.

It is an amenable number.

30490048 is a deficient number, since it is larger than the sum of its proper divisors (30013768).

30490048 is an equidigital number, since it uses as much as digits as its factorization.

30490048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476419 (or 476409 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 30490048 is about 5521.7794233381. The cubic root of 30490048 is about 312.4060022356.

The spelling of 30490048 in words is "thirty million, four hundred ninety thousand, forty-eight".

Divisors: 1 2 4 8 16 32 64 476407 952814 1905628 3811256 7622512 15245024 30490048