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130022031 = 3162126737
BaseRepresentation
bin1111011111111…
…11101010001111
3100001122210200210
413233333222033
5231241201111
620522453503
73136111656
oct757775217
9301583623
10130022031
1167437527
1237664293
1320c25819
14133a819d
15b6350a6
hex7bffa8f

130022031 has 8 divisors (see below), whose sum is σ = 173476144. Its totient is φ = 86624640.

The previous prime is 130022021. The next prime is 130022077. The reversal of 130022031 is 130220031.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-130022031 is a prime.

It is a super-2 number, since 2×1300220312 = 33811457090729922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130021998 and 130022016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130022021) 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, 8506 + ... + 18231.

It is an arithmetic number, because the mean of its divisors is an integer number (21684518).

Almost surely, 2130022031 is an apocalyptic number.

130022031 is a deficient number, since it is larger than the sum of its proper divisors (43454113).

130022031 is a wasteful number, since it uses less digits than its factorization.

130022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28361.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 130022031 is about 11402.7203333240. The cubic root of 130022031 is about 506.6083168512.

Adding to 130022031 its reverse (130220031), we get a palindrome (260242062).

The spelling of 130022031 in words is "one hundred thirty million, twenty-two thousand, thirty-one".

Divisors: 1 3 1621 4863 26737 80211 43340677 130022031