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130938445 = 5115034733
BaseRepresentation
bin1111100110111…
…11011001001101
3100010101100210001
413303133121031
5232010012240
620554244301
73146646511
oct763373115
9303340701
10130938445
1167a02aa0
1237a26691
1321186991
1413566141
15b76689a
hex7cdf64d

130938445 has 16 divisors (see below), whose sum is σ = 171787392. Its totient is φ = 95018560.

The previous prime is 130938439. The next prime is 130938469. The reversal of 130938445 is 544839031.

It is not a de Polignac number, because 130938445 - 217 = 130807373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25299 + ... + 30031.

It is an arithmetic number, because the mean of its divisors is an integer number (10736712).

Almost surely, 2130938445 is an apocalyptic number.

It is an amenable number.

130938445 is a deficient number, since it is larger than the sum of its proper divisors (40848947).

130938445 is a wasteful number, since it uses less digits than its factorization.

130938445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 130938445 is about 11442.8337836394. The cubic root of 130938445 is about 507.7957476036.

The spelling of 130938445 in words is "one hundred thirty million, nine hundred thirty-eight thousand, four hundred forty-five".

Divisors: 1 5 11 55 503 2515 4733 5533 23665 27665 52063 260315 2380699 11903495 26187689 130938445