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88851881 is a prime number
BaseRepresentation
bin1010100101111…
…00010110101001
320012012010212102
411102330112221
5140221230011
612452223145
72126141246
oct522742651
9205163772
1088851881
1146177808
122590aab5
131553c4a1
14bb2c5cd
157c0173b
hex54bc5a9

88851881 has 2 divisors, whose sum is σ = 88851882. Its totient is φ = 88851880.

The previous prime is 88851871. The next prime is 88851899. The reversal of 88851881 is 18815888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73960000 + 14891881 = 8600^2 + 3859^2 .

It is a cyclic number.

It is not a de Polignac number, because 88851881 - 222 = 84657577 is a prime.

It is a super-2 number, since 2×888518812 = 15789313514476322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (88851811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44425940 + 44425941.

It is an arithmetic number, because the mean of its divisors is an integer number (44425941).

Almost surely, 288851881 is an apocalyptic number.

It is an amenable number.

88851881 is a deficient number, since it is larger than the sum of its proper divisors (1).

88851881 is an equidigital number, since it uses as much as digits as its factorization.

88851881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163840, while the sum is 47.

The square root of 88851881 is about 9426.1275718081. The cubic root of 88851881 is about 446.2266890401.

The spelling of 88851881 in words is "eighty-eight million, eight hundred fifty-one thousand, eight hundred eighty-one".