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39670607949 = 374423427103
BaseRepresentation
bin100100111100100011…
…010111000001001101
310210101201020200112220
4210330203113001031
51122221133423244
630120250445553
72603034414060
oct447443270115
9123351220486
1039670607949
1115908029a05
1278317338b9
133982a6341b
141cc49468d7
151072b1e319
hex93c8d704d

39670607949 has 16 divisors (see below), whose sum is σ = 60464259072. Its totient is φ = 22663740528.

The previous prime is 39670607929. The next prime is 39670607953. The reversal of 39670607949 is 94970607693.

It is not a de Polignac number, because 39670607949 - 225 = 39637053517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39670607892 and 39670607901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39670607909) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 120669 + ... + 306434.

It is an arithmetic number, because the mean of its divisors is an integer number (3779016192).

Almost surely, 239670607949 is an apocalyptic number.

It is an amenable number.

39670607949 is a deficient number, since it is larger than the sum of its proper divisors (20793651123).

39670607949 is a wasteful number, since it uses less digits than its factorization.

39670607949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431536.

The product of its (nonzero) digits is 15431472, while the sum is 60.

The spelling of 39670607949 in words is "thirty-nine billion, six hundred seventy million, six hundred seven thousand, nine hundred forty-nine".

Divisors: 1 3 7 21 4423 13269 30961 92883 427103 1281309 2989721 8969163 1889076569 5667229707 13223535983 39670607949