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201053323451 = 661304165391
BaseRepresentation
bin1011101100111110110…
…1100100000010111011
3201012221202022001122002
42323033231210002323
511243224122322301
6232210154251215
720345201023601
oct2731755440273
9635852261562
10201053323451
11782a23a5752
1232b70426b0b
1315c616093a6
149a33d4d871
15536ab8a16b
hex2ecfb640bb

201053323451 has 4 divisors (see below), whose sum is σ = 201357489504. Its totient is φ = 200749157400.

The previous prime is 201053323439. The next prime is 201053323453. The reversal of 201053323451 is 154323350102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201053323451 - 214 = 201053307067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201053323453) 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, 152082035 + ... + 152083356.

It is an arithmetic number, because the mean of its divisors is an integer number (50339372376).

Almost surely, 2201053323451 is an apocalyptic number.

201053323451 is a deficient number, since it is larger than the sum of its proper divisors (304166053).

201053323451 is an equidigital number, since it uses as much as digits as its factorization.

201053323451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304166052.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 201053323451 its reverse (154323350102), we get a palindrome (355376673553).

The spelling of 201053323451 in words is "two hundred one billion, fifty-three million, three hundred twenty-three thousand, four hundred fifty-one".

Divisors: 1 661 304165391 201053323451