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130244278 = 21929118189
BaseRepresentation
bin1111100001101…
…01111010110110
3100002002002120011
413300311322312
5231320304103
620531330434
73141025633
oct760657266
9302062504
10130244278
11675794aa
1237750a1a
1320ca2a28
141342518a
15b67ad6d
hex7c35eb6

130244278 has 16 divisors (see below), whose sum is σ = 212742000. Its totient is φ = 59566752.

The previous prime is 130244273. The next prime is 130244311. The reversal of 130244278 is 872442031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130244273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57993 + ... + 60196.

It is an arithmetic number, because the mean of its divisors is an integer number (13296375).

Almost surely, 2130244278 is an apocalyptic number.

130244278 is a deficient number, since it is larger than the sum of its proper divisors (82497722).

130244278 is a wasteful number, since it uses less digits than its factorization.

130244278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118239.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 130244278 is about 11412.4615223886. The cubic root of 130244278 is about 506.8968015211.

The spelling of 130244278 in words is "one hundred thirty million, two hundred forty-four thousand, two hundred seventy-eight".

Divisors: 1 2 19 29 38 58 551 1102 118189 236378 2245591 3427481 4491182 6854962 65122139 130244278