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715120717417 = 2847725112221
BaseRepresentation
bin10100110100000001000…
…01000010111001101001
32112100211222210102120221
422122000201002321221
543204031400424132
61304304422450041
7102444233542531
oct12320041027151
92470758712527
10715120717417
11256310002477
12b6718593921
1352588001602
142687d5904c1
15139067b4e97
hexa680842e69

715120717417 has 4 divisors (see below), whose sum is σ = 715145858116. Its totient is φ = 715095576720.

The previous prime is 715120717393. The next prime is 715120717429. The reversal of 715120717417 is 714717021517.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 714717021517 = 1937616685343.

It can be written as a sum of positive squares in 2 ways, for example, as 322738746201 + 392381971216 = 568101^2 + 626404^2 .

It is a cyclic number.

It is not a de Polignac number, because 715120717417 - 235 = 680760979049 is a prime.

It is a super-2 number, since 2×7151207174172 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715120714417) 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, 12527634 + ... + 12584587.

It is an arithmetic number, because the mean of its divisors is an integer number (178786464529).

Almost surely, 2715120717417 is an apocalyptic number.

It is an amenable number.

715120717417 is a deficient number, since it is larger than the sum of its proper divisors (25140699).

715120717417 is a wasteful number, since it uses less digits than its factorization.

715120717417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25140698.

The product of its (nonzero) digits is 96040, while the sum is 43.

The spelling of 715120717417 in words is "seven hundred fifteen billion, one hundred twenty million, seven hundred seventeen thousand, four hundred seventeen".

Divisors: 1 28477 25112221 715120717417