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30839484 = 22313197689
BaseRepresentation
bin111010110100…
…1001010111100
32011000210211010
41311221022330
530343330414
63020555220
7523063014
oct165511274
964023733
1030839484
1116454185
12a3b2b10
13650a120
14414ac44
152a92959
hex1d692bc

30839484 has 24 divisors (see below), whose sum is σ = 77494480. Its totient is φ = 9489024.

The previous prime is 30839483. The next prime is 30839491. The reversal of 30839484 is 48493803.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30839483) 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, 98689 + ... + 99000.

Almost surely, 230839484 is an apocalyptic number.

It is an amenable number.

30839484 is an abundant number, since it is smaller than the sum of its proper divisors (46654996).

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

30839484 is a wasteful number, since it uses less digits than its factorization.

30839484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197709 (or 197707 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 30839484 is about 5553.3308923564. The cubic root of 30839484 is about 313.5949311750.

The spelling of 30839484 in words is "thirty million, eight hundred thirty-nine thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 197689 395378 593067 790756 1186134 2372268 2569957 5139914 7709871 10279828 15419742 30839484