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260131378 = 21310005053
BaseRepresentation
bin11111000000101…
…00101000110010
3200010111001011111
433200110220302
51013043201003
641451303534
76306036343
oct1740245062
9603431144
10260131378
11123923611
127314abaa
1341b7bcc0
14267960ca
1517c85e6d
hexf814a32

260131378 has 8 divisors (see below), whose sum is σ = 420212268. Its totient is φ = 120060624.

The previous prime is 260131373. The next prime is 260131397. The reversal of 260131378 is 873131062.

It can be written as a sum of positive squares in 2 ways, for example, as 250810569 + 9320809 = 15837^2 + 3053^2 .

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

It is not an unprimeable number, because it can be changed into a prime (260131373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5002501 + ... + 5002552.

Almost surely, 2260131378 is an apocalyptic number.

260131378 is a deficient number, since it is larger than the sum of its proper divisors (160080890).

260131378 is a wasteful number, since it uses less digits than its factorization.

260131378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005068.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 260131378 is about 16128.5888409371. The cubic root of 260131378 is about 638.3579144314.

The spelling of 260131378 in words is "two hundred sixty million, one hundred thirty-one thousand, three hundred seventy-eight".

Divisors: 1 2 13 26 10005053 20010106 130065689 260131378