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30057037 = 1716310847
BaseRepresentation
bin111001010101…
…0001001001101
32002120001111121
41302222021031
530143311122
62552120541
7513323563
oct162521115
962501447
1030057037
1115a6a32a
12a096151
1362c4c3a
143dc5a33
15298abc7
hex1caa24d

30057037 has 8 divisors (see below), whose sum is σ = 32023296. Its totient is φ = 28112832.

The previous prime is 30057029. The next prime is 30057047. The reversal of 30057037 is 73075003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30057037 - 23 = 30057029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30057007) 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, 2653 + ... + 8194.

It is an arithmetic number, because the mean of its divisors is an integer number (4002912).

Almost surely, 230057037 is an apocalyptic number.

It is an amenable number.

30057037 is a deficient number, since it is larger than the sum of its proper divisors (1966259).

30057037 is a wasteful number, since it uses less digits than its factorization.

30057037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11027.

The product of its (nonzero) digits is 2205, while the sum is 25.

The square root of 30057037 is about 5482.4298445124. The cubic root of 30057037 is about 310.9200450645.

The spelling of 30057037 in words is "thirty million, fifty-seven thousand, thirty-seven".

Divisors: 1 17 163 2771 10847 184399 1768061 30057037