Search a number
-
+
88036381 is a prime number
BaseRepresentation
bin1010011111101…
…01010000011101
320010122201012201
411033311100131
5140014131011
612422531501
72116203556
oct517652035
9203581181
1088036381
1145770044
1225596b91
1315315244
14b99932d
157adecc1
hex53f541d

88036381 has 2 divisors, whose sum is σ = 88036382. Its totient is φ = 88036380.

The previous prime is 88036343. The next prime is 88036391. The reversal of 88036381 is 18363088.

It is the 3831-st star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82973881 + 5062500 = 9109^2 + 2250^2 .

It is a cyclic number.

It is not a de Polignac number, because 88036381 - 211 = 88034333 is a prime.

It is a super-2 number, since 2×880363812 = 15500808759154322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88036381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88036301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44018190 + 44018191.

It is an arithmetic number, because the mean of its divisors is an integer number (44018191).

Almost surely, 288036381 is an apocalyptic number.

It is an amenable number.

88036381 is a deficient number, since it is larger than the sum of its proper divisors (1).

88036381 is an equidigital number, since it uses as much as digits as its factorization.

88036381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 88036381 is about 9382.7704330864. The cubic root of 88036381 is about 444.8573055928.

The spelling of 88036381 in words is "eighty-eight million, thirty-six thousand, three hundred eighty-one".