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31134030 = 2351037801
BaseRepresentation
bin111011011000…
…1000101001110
32011120202212020
41312301011032
530432242110
63031151010
7525430524
oct166610516
964522766
1031134030
1116635504
12a515466
1365b1205
1441c6314
152aeed70
hex1db114e

31134030 has 16 divisors (see below), whose sum is σ = 74721744. Its totient is φ = 8302400.

The previous prime is 31134017. The next prime is 31134043. The reversal of 31134030 is 3043113.

It is an interprime number because it is at equal distance from previous prime (31134017) and next prime (31134043).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518871 + ... + 518930.

It is an arithmetic number, because the mean of its divisors is an integer number (4670109).

Almost surely, 231134030 is an apocalyptic number.

31134030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31134030 is an abundant number, since it is smaller than the sum of its proper divisors (43587714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31134030 is a wasteful number, since it uses less digits than its factorization.

31134030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037811.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 31134030 is about 5579.7876303673. The cubic root of 31134030 is about 314.5901447097.

Adding to 31134030 its reverse (3043113), we get a palindrome (34177143).

The spelling of 31134030 in words is "thirty-one million, one hundred thirty-four thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 1037801 2075602 3113403 5189005 6226806 10378010 15567015 31134030