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39388917007 = 1123155687419
BaseRepresentation
bin100100101011110000…
…110010110100001111
310202200002012022020001
4210223300302310033
51121132030321012
630032305105131
72563044161506
oct445360626417
9122602168201
1039388917007
1115783020380
1277733281a7
1339395a61ab
141c9937b83d
15105802a357
hex92bc32d0f

39388917007 has 8 divisors (see below), whose sum is σ = 44837976960. Its totient is φ = 34251231960.

The previous prime is 39388916969. The next prime is 39388917019. The reversal of 39388917007 is 70071988393.

39388917007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39388917007 - 211 = 39388914959 is a prime.

It is a super-3 number, since 3×393889170073 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39388917047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77843457 + ... + 77843962.

It is an arithmetic number, because the mean of its divisors is an integer number (5604747120).

Almost surely, 239388917007 is an apocalyptic number.

39388917007 is a deficient number, since it is larger than the sum of its proper divisors (5449059953).

39388917007 is a wasteful number, since it uses less digits than its factorization.

39388917007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155687453.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 39388917007 in words is "thirty-nine billion, three hundred eighty-eight million, nine hundred seventeen thousand, seven".

Divisors: 1 11 23 253 155687419 1712561609 3580810637 39388917007