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3781235007 = 331112731431
BaseRepresentation
bin1110000101100001…
…0001000100111111
3100202112001122022000
43201120101010333
530220444010012
61423112553343
7162462652524
oct34130210477
910675048260
103781235007
111670454910
128963b2853
134834c7184
1427c28914b
15171e60ddc
hexe161113f

3781235007 has 16 divisors (see below), whose sum is σ = 6111087360. Its totient is φ = 2291657400.

The previous prime is 3781234993. The next prime is 3781235009. The reversal of 3781235007 is 7005321873.

It is not a de Polignac number, because 3781235007 - 24 = 3781234991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781235009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6365419 + ... + 6366012.

It is an arithmetic number, because the mean of its divisors is an integer number (381942960).

Almost surely, 23781235007 is an apocalyptic number.

3781235007 is a deficient number, since it is larger than the sum of its proper divisors (2329852353).

3781235007 is a wasteful number, since it uses less digits than its factorization.

3781235007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12731451 (or 12731445 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 3781235007 is about 61491.7474706972. The cubic root of 3781235007 is about 1557.9178619917.

The spelling of 3781235007 in words is "three billion, seven hundred eighty-one million, two hundred thirty-five thousand, seven".

Divisors: 1 3 9 11 27 33 99 297 12731431 38194293 114582879 140045741 343748637 420137223 1260411669 3781235007