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30941137 = 127243631
BaseRepresentation
bin111011000000…
…1111111010001
32011012222021001
41312001333101
530410104022
63023102001
7523665253
oct166017721
964188231
1030941137
1116513597
12a441901
136544486
144175cd3
152ab2b27
hex1d81fd1

30941137 has 4 divisors (see below), whose sum is σ = 31184896. Its totient is φ = 30697380.

The previous prime is 30941129. The next prime is 30941143. The reversal of 30941137 is 73114903.

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.

It is a cyclic number.

It is not a de Polignac number, because 30941137 - 23 = 30941129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30941107) 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, 121689 + ... + 121942.

It is an arithmetic number, because the mean of its divisors is an integer number (7796224).

Almost surely, 230941137 is an apocalyptic number.

It is an amenable number.

30941137 is a deficient number, since it is larger than the sum of its proper divisors (243759).

30941137 is a wasteful number, since it uses less digits than its factorization.

30941137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243758.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 30941137 is about 5562.4757977002. The cubic root of 30941137 is about 313.9391101319.

It can be divided in two parts, 3094 and 1137, that multiplied together give a triangular number (3517878 = T2652).

The spelling of 30941137 in words is "thirty million, nine hundred forty-one thousand, one hundred thirty-seven".

Divisors: 1 127 243631 30941137