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30376540 = 2251518827
BaseRepresentation
bin111001111100…
…0001001011100
32010011021210001
41303320021130
530234022130
63003024044
7516124225
oct163701134
963137701
1030376540
1116168387
12a20b024
1363a74ac
14406a24c
152a006ca
hex1cf825c

30376540 has 12 divisors (see below), whose sum is σ = 63790776. Its totient is φ = 12150608.

The previous prime is 30376529. The next prime is 30376553. The reversal of 30376540 is 4567303.

It is a junction number, because it is equal to n+sod(n) for n = 30376499 and 30376508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759394 + ... + 759433.

It is an arithmetic number, because the mean of its divisors is an integer number (5315898).

Almost surely, 230376540 is an apocalyptic number.

It is an amenable number.

30376540 is an abundant number, since it is smaller than the sum of its proper divisors (33414236).

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

30376540 is a wasteful number, since it uses less digits than its factorization.

30376540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518836 (or 1518834 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 30376540 is about 5511.4916311285. The cubic root of 30376540 is about 312.0178463384.

The spelling of 30376540 in words is "thirty million, three hundred seventy-six thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 1518827 3037654 6075308 7594135 15188270 30376540