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39010001221 = 194574492687
BaseRepresentation
bin100100010101001011…
…010110000101000101
310201200200012101111001
4210111023112011011
51114343030014341
625530531413301
72550463352662
oct442513260505
9121620171431
1039010001221
11155a9146334
127688454231
1338a8c37679
141c60d04a69
151034b2dd31
hex9152d6145

39010001221 has 8 divisors (see below), whose sum is σ = 41153022080. Its totient is φ = 36875966688.

The previous prime is 39010001189. The next prime is 39010001273. The reversal of 39010001221 is 12210001093.

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

It is not a de Polignac number, because 39010001221 - 25 = 39010001189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39010004221) 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, 2237661 + ... + 2255026.

It is an arithmetic number, because the mean of its divisors is an integer number (5144127760).

Almost surely, 239010001221 is an apocalyptic number.

It is an amenable number.

39010001221 is a deficient number, since it is larger than the sum of its proper divisors (2143020859).

39010001221 is a wasteful number, since it uses less digits than its factorization.

39010001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493163.

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 39010001221 in words is "thirty-nine billion, ten million, one thousand, two hundred twenty-one".

Divisors: 1 19 457 8683 4492687 85361053 2053157959 39010001221