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130694438 = 2713768141
BaseRepresentation
bin1111100101000…
…11110100100110
3100002220222001202
413302203310212
5231424210223
620545122502
73144612230
oct762436446
9302828052
10130694438
1167856736
1237929432
13210cc8b4
1413501250
15b719428
hex7ca3d26

130694438 has 16 divisors (see below), whose sum is σ = 225686304. Its totient is φ = 55602240.

The previous prime is 130694423. The next prime is 130694479. The reversal of 130694438 is 834496031.

It is a super-2 number, since 2×1306944382 = 34162072248271688, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32153 + ... + 35988.

It is an arithmetic number, because the mean of its divisors is an integer number (14105394).

Almost surely, 2130694438 is an apocalyptic number.

130694438 is a deficient number, since it is larger than the sum of its proper divisors (94991866).

130694438 is a wasteful number, since it uses less digits than its factorization.

130694438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68287.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 130694438 is about 11432.1668112392. The cubic root of 130694438 is about 507.4801215248.

The spelling of 130694438 in words is "one hundred thirty million, six hundred ninety-four thousand, four hundred thirty-eight".

Divisors: 1 2 7 14 137 274 959 1918 68141 136282 476987 953974 9335317 18670634 65347219 130694438