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30061037 = 74340459
BaseRepresentation
bin111001010101…
…1000111101101
32002120020222202
41302223013231
530143423122
62552151245
7513341336
oct162530755
962506882
1030061037
1115a72336
12a098525
1362c69c6
143dc728d
15298be92
hex1cab1ed

30061037 has 4 divisors (see below), whose sum is σ = 30102240. Its totient is φ = 30019836.

The previous prime is 30061013. The next prime is 30061043. The reversal of 30061037 is 73016003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73016003 = 174295059.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30061037 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 (30061007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19487 + ... + 20972.

It is an arithmetic number, because the mean of its divisors is an integer number (7525560).

Almost surely, 230061037 is an apocalyptic number.

It is an amenable number.

30061037 is a deficient number, since it is larger than the sum of its proper divisors (41203).

30061037 is an equidigital number, since it uses as much as digits as its factorization.

30061037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41202.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 30061037 is about 5482.7946341259. The cubic root of 30061037 is about 310.9338368987.

The spelling of 30061037 in words is "thirty million, sixty-one thousand, thirty-seven".

Divisors: 1 743 40459 30061037