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30744386401 = 200891530409
BaseRepresentation
bin11100101000100000…
…100001101101100001
32221100121222122112211
4130220200201231201
51000431030331101
622042422522121
72135605654411
oct345040415541
987317878484
1030744386401
111204744a603
125b60296341
132b8c675721
1416b9258641
15bee167c51
hex728821b61

30744386401 has 4 divisors (see below), whose sum is σ = 30745936900. Its totient is φ = 30742835904.

The previous prime is 30744386399. The next prime is 30744386411. The reversal of 30744386401 is 10468344703.

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 19247400225 + 11496986176 = 138735^2 + 107224^2 .

It is a cyclic number.

It is not a de Polignac number, because 30744386401 - 21 = 30744386399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30744386411) 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, 745116 + ... + 785293.

It is an arithmetic number, because the mean of its divisors is an integer number (7686484225).

Almost surely, 230744386401 is an apocalyptic number.

It is an amenable number.

30744386401 is a deficient number, since it is larger than the sum of its proper divisors (1550499).

30744386401 is a wasteful number, since it uses less digits than its factorization.

30744386401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550498.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 30744386401 in words is "thirty billion, seven hundred forty-four million, three hundred eighty-six thousand, four hundred one".

Divisors: 1 20089 1530409 30744386401