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39107040025 = 52395512
BaseRepresentation
bin100100011010111101…
…100001001100011001
310201221102210110200211
4210122331201030121
51120042400240100
625544315331121
72553052232644
oct443275411431
9121842713624
1039107040025
11156489a4a99
1276b4a50aa1
1338c3082391
141c6db64a5b
15103d3eb1ba
hex91af61319

39107040025 has 9 divisors (see below), whose sum is σ = 48493955743. Its totient is φ = 31284841000.

The previous prime is 39107039971. The next prime is 39107040043. The reversal of 39107040025 is 52004070193.

The square root of 39107040025 is 197755.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14078534409 + 25028505616 = 118653^2 + 158204^2 .

It is not a de Polignac number, because 39107040025 - 221 = 39104942873 is a prime.

It is a super-3 number, since 3×391070400253 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 969000 + ... + 1008550.

Almost surely, 239107040025 is an apocalyptic number.

39107040025 is the 197755-th square number.

39107040025 is the 98878-th centered octagonal number.

It is an amenable number.

39107040025 is a deficient number, since it is larger than the sum of its proper divisors (9386915718).

39107040025 is an frugal number, since it uses more digits than its factorization.

39107040025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79112 (or 39556 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The spelling of 39107040025 in words is "thirty-nine billion, one hundred seven million, forty thousand, twenty-five".

Divisors: 1 5 25 39551 197755 988775 1564281601 7821408005 39107040025