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11862888961 = 711154063493
BaseRepresentation
bin10110000110001010…
…10101001000000001
31010121202010012100211
423003011111020001
5143243344421321
65241050514121
7566654615050
oct130305251001
933552105324
1011862888961
115038323070
122370a35941
131170929431
1480772a397
154966da0e1
hex2c3155201

11862888961 has 8 divisors (see below), whose sum is σ = 14790095424. Its totient is φ = 9243809520.

The previous prime is 11862888941. The next prime is 11862888979. The reversal of 11862888961 is 16988826811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11862888961 - 213 = 11862880769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11862888896 and 11862888905.

It is not an unprimeable number, because it can be changed into a prime (11862888901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77031670 + ... + 77031823.

It is an arithmetic number, because the mean of its divisors is an integer number (1848761928).

Almost surely, 211862888961 is an apocalyptic number.

11862888961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11862888961 is a deficient number, since it is larger than the sum of its proper divisors (2927206463).

11862888961 is a wasteful number, since it uses less digits than its factorization.

11862888961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154063511.

The product of its digits is 2654208, while the sum is 58.

The spelling of 11862888961 in words is "eleven billion, eight hundred sixty-two million, eight hundred eighty-eight thousand, nine hundred sixty-one".

Divisors: 1 7 11 77 154063493 1078444451 1694698423 11862888961