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30149588 = 2271076771
BaseRepresentation
bin111001100000…
…0101111010100
32002201202110102
41303000233110
530204241323
62554113232
7514160450
oct163005724
962652412
1030149588
1116022917
12a11b818
1363280c1
14400b660
1529a8328
hex1cc0bd4

30149588 has 12 divisors (see below), whose sum is σ = 60299232. Its totient is φ = 12921240.

The previous prime is 30149557. The next prime is 30149591. The reversal of 30149588 is 88594103.

30149588 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538358 + ... + 538413.

It is an arithmetic number, because the mean of its divisors is an integer number (5024936).

Almost surely, 230149588 is an apocalyptic number.

It is an amenable number.

30149588 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30149588 is a wasteful number, since it uses less digits than its factorization.

30149588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076782 (or 1076780 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 30149588 is about 5490.8640485811. The cubic root of 30149588 is about 311.2388442425.

The spelling of 30149588 in words is "thirty million, one hundred forty-nine thousand, five hundred eighty-eight".

Divisors: 1 2 4 7 14 28 1076771 2153542 4307084 7537397 15074794 30149588