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1081157441 = 71353972311
BaseRepresentation
bin100000001110001…
…0010011101000001
32210100101111012012
41000130102131001
54203234014231
6255140542305
735535454340
oct10034223501
92710344165
101081157441
11505315651
122620b1995
13142cb4340
14a3835b57
1564db2e2b
hex40712741

1081157441 has 32 divisors (see below), whose sum is σ = 1370331648. Its totient is φ = 830269440.

The previous prime is 1081157417. The next prime is 1081157447. The reversal of 1081157441 is 1447511801.

It is not a de Polignac number, because 1081157441 - 226 = 1014048577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1081157398 and 1081157407.

It is not an unprimeable number, because it can be changed into a prime (1081157447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 466676 + ... + 468986.

It is an arithmetic number, because the mean of its divisors is an integer number (42822864).

Almost surely, 21081157441 is an apocalyptic number.

It is an amenable number.

1081157441 is a deficient number, since it is larger than the sum of its proper divisors (289174207).

1081157441 is a wasteful number, since it uses less digits than its factorization.

1081157441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 1081157441 is about 32880.9586387015. The cubic root of 1081157441 is about 1026.3519549787.

The spelling of 1081157441 in words is "one billion, eighty-one million, one hundred fifty-seven thousand, four hundred forty-one".

Divisors: 1 7 13 53 91 97 371 679 689 1261 2311 4823 5141 8827 16177 30043 35987 66833 122483 210301 224167 467831 857381 1569169 1592279 2914171 11145953 11880851 20399197 83165957 154451063 1081157441