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39854220001 = 182321861887
BaseRepresentation
bin100101000111011111…
…110010001011100001
310210212111202010221021
4211013133302023201
51123110140020001
630150410125441
72610424165141
oct450737621341
9123774663837
1039854220001
11159a1739402
127883120881
1339b1b003cb
141d010a0921
151083cdcba1
hex9477f22e1

39854220001 has 4 divisors (see below), whose sum is σ = 39876083712. Its totient is φ = 39832356292.

The previous prime is 39854219989. The next prime is 39854220019. The reversal of 39854220001 is 10002245893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39854220001 - 213 = 39854211809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39854220401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10929121 + ... + 10932766.

It is an arithmetic number, because the mean of its divisors is an integer number (9969020928).

Almost surely, 239854220001 is an apocalyptic number.

It is an amenable number.

39854220001 is a deficient number, since it is larger than the sum of its proper divisors (21863711).

39854220001 is a wasteful number, since it uses less digits than its factorization.

39854220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21863710.

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 39854220001 its reverse (10002245893), we get a palindrome (49856465894).

The spelling of 39854220001 in words is "thirty-nine billion, eight hundred fifty-four million, two hundred twenty thousand, one".

Divisors: 1 1823 21861887 39854220001