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30057741 = 327677121
BaseRepresentation
bin111001010101…
…0010100001101
32002120002110200
41302222110031
530143321431
62552124113
7513325620
oct162522415
962502420
1030057741
1115a6a90a
12a096639
1362c535c
143dc5db7
15298aee6
hex1caa50d

30057741 has 24 divisors (see below), whose sum is σ = 50366784. Its totient is φ = 16917120.

The previous prime is 30057739. The next prime is 30057743. The reversal of 30057741 is 14775003.

It is an interprime number because it is at equal distance from previous prime (30057739) and next prime (30057743).

It is not a de Polignac number, because 30057741 - 21 = 30057739 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30057743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661 + ... + 7781.

It is an arithmetic number, because the mean of its divisors is an integer number (2098616).

Almost surely, 230057741 is an apocalyptic number.

It is an amenable number.

30057741 is a deficient number, since it is larger than the sum of its proper divisors (20309043).

30057741 is a wasteful number, since it uses less digits than its factorization.

30057741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201 (or 7198 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 30057741 is about 5482.4940492444. The cubic root of 30057741 is about 310.9224725160.

The spelling of 30057741 in words is "thirty million, fifty-seven thousand, seven hundred forty-one".

Divisors: 1 3 7 9 21 63 67 201 469 603 1407 4221 7121 21363 49847 64089 149541 448623 477107 1431321 3339749 4293963 10019247 30057741