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30944328101 = 221313982977
BaseRepresentation
bin11100110100011011…
…001111100110100101
32221212120012201222222
4130310123033212211
51001333221444401
622114324202125
72143554310001
oct346433174645
987776181888
1030944328101
111213a2a2785
125bb7239345
132bc1c0c31b
1416d7a23701
15c119aec1b
hex7346cf9a5

30944328101 has 4 divisors (see below), whose sum is σ = 30958313292. Its totient is φ = 30930342912.

The previous prime is 30944328071. The next prime is 30944328127. The reversal of 30944328101 is 10182344903.

It is a Cunningham number, because it is equal to 1759102+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30720975076 + 223353025 = 175274^2 + 14945^2 .

It is a cyclic number.

It is not a de Polignac number, because 30944328101 - 210 = 30944327077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30944328001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6989276 + ... + 6993701.

It is an arithmetic number, because the mean of its divisors is an integer number (7739578323).

Almost surely, 230944328101 is an apocalyptic number.

It is an amenable number.

30944328101 is a deficient number, since it is larger than the sum of its proper divisors (13985191).

30944328101 is a wasteful number, since it uses less digits than its factorization.

30944328101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13985190.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 30944328101 in words is "thirty billion, nine hundred forty-four million, three hundred twenty-eight thousand, one hundred one".

Divisors: 1 2213 13982977 30944328101