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30331129 = 297114731
BaseRepresentation
bin111001110110…
…1000011111001
32010001222111011
41303231003321
530231044004
63002033521
7515544643
oct163550371
963058434
1030331129
1116137254
12a1a88a1
13638c91a
144057893
1529e2004
hex1ced0f9

30331129 has 8 divisors (see below), whose sum is σ = 31821120. Its totient is φ = 28870800.

The previous prime is 30331123. The next prime is 30331139. The reversal of 30331129 is 92113303.

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

It is a cyclic number.

It is not a de Polignac number, because 30331129 - 25 = 30331097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30331123) 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, 5307 + ... + 9424.

It is an arithmetic number, because the mean of its divisors is an integer number (3977640).

Almost surely, 230331129 is an apocalyptic number.

It is an amenable number.

30331129 is a deficient number, since it is larger than the sum of its proper divisors (1489991).

30331129 is a wasteful number, since it uses less digits than its factorization.

30331129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14831.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 30331129 is about 5507.3704251666. The cubic root of 30331129 is about 311.8622865007.

The spelling of 30331129 in words is "thirty million, three hundred thirty-one thousand, one hundred twenty-nine".

Divisors: 1 29 71 2059 14731 427199 1045901 30331129