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13223001042 = 232734611169
BaseRepresentation
bin11000101000010011…
…01111101111010010
31021010112102001101100
430110021233233102
5204040042013132
610024034445230
7645451440306
oct142411575722
937115361340
1013223001042
115676048439
122690433816
131329650394
148d6217d06
15525d0137c
hex31426fbd2

13223001042 has 12 divisors (see below), whose sum is σ = 28649835630. Its totient is φ = 4407667008.

The previous prime is 13223001041. The next prime is 13223001091. The reversal of 13223001042 is 24010032231.

13223001042 is a `hidden beast` number, since 1 + 322 + 300 + 1 + 0 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13135222881 + 87778161 = 114609^2 + 9369^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 734611169 = 13223001042 / (1 + 3 + 2 + 2 + 3 + 0 + 0 + 1 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (13223001041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367305567 + ... + 367305602.

Almost surely, 213223001042 is an apocalyptic number.

13223001042 is an abundant number, since it is smaller than the sum of its proper divisors (15426834588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223001042 is a wasteful number, since it uses less digits than its factorization.

13223001042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734611177 (or 734611174 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13223001042 its reverse (24010032231), we get a palindrome (37233033273).

The spelling of 13223001042 in words is "thirteen billion, two hundred twenty-three million, one thousand, forty-two".

Divisors: 1 2 3 6 9 18 734611169 1469222338 2203833507 4407667014 6611500521 13223001042