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345770007 = 31117096131
BaseRepresentation
bin10100100111000…
…000100000010111
3220002121221021120
4110213000200113
51202004120012
654151015023
711365665552
oct2447004027
9802557246
10345770007
111681a6140
129796a473
1356834a4b
1433cc9699
152055058c
hex149c0817

345770007 has 16 divisors (see below), whose sum is σ = 503314560. Its totient is φ = 209400800.

The previous prime is 345769981. The next prime is 345770011. The reversal of 345770007 is 700077543.

It is a cyclic number.

It is not a de Polignac number, because 345770007 - 211 = 345767959 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 345770007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345770057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53332 + ... + 59462.

It is an arithmetic number, because the mean of its divisors is an integer number (31457160).

Almost surely, 2345770007 is an apocalyptic number.

345770007 is a deficient number, since it is larger than the sum of its proper divisors (157544553).

345770007 is a wasteful number, since it uses less digits than its factorization.

345770007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7854.

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 345770007 is about 18594.8919598905. The cubic root of 345770007 is about 701.8793085587.

The spelling of 345770007 in words is "three hundred forty-five million, seven hundred seventy thousand, seven".

Divisors: 1 3 11 33 1709 5127 6131 18393 18799 56397 67441 202323 10477879 31433637 115256669 345770007