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260830078 = 2130415039
BaseRepresentation
bin11111000101111…
…11001101111110
3200011210112121021
433202333031332
51013233030303
641514254354
76315006355
oct1742771576
9604715537
10260830078
11124260553
12734273ba
1342065032
14268d899c
1517d72ebd
hexf8bf37e

260830078 has 4 divisors (see below), whose sum is σ = 391245120. Its totient is φ = 130415038.

The previous prime is 260830067. The next prime is 260830079. The reversal of 260830078 is 870038062.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870038062 = 2435019031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260830079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65207518 + ... + 65207521.

It is an arithmetic number, because the mean of its divisors is an integer number (97811280).

Almost surely, 2260830078 is an apocalyptic number.

260830078 is a deficient number, since it is larger than the sum of its proper divisors (130415042).

260830078 is a wasteful number, since it uses less digits than its factorization.

260830078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130415041.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 260830078 is about 16150.2346112990. The cubic root of 260830078 is about 638.9289360735.

The spelling of 260830078 in words is "two hundred sixty million, eight hundred thirty thousand, seventy-eight".

Divisors: 1 2 130415039 260830078