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BaseRepresentation
bin1011101100111110100…
…01111100111101000101
31102102220100001221100022
411312133101330331011
523042002141220424
6504420225224525
741023342443212
oct5663721747505
91372810057308
10402104241989
111455933a856a
1265b1ba92145
132bbc2582c48
1415667834b09
15a6d64ec95e
hex5d9f47cf45

402104241989 has 2 divisors, whose sum is σ = 402104241990. Its totient is φ = 402104241988.

The previous prime is 402104241977. The next prime is 402104242063. The reversal of 402104241989 is 989142401204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395693837764 + 6410404225 = 629042^2 + 80065^2 .

It is a cyclic number.

It is not a de Polignac number, because 402104241989 - 212 = 402104237893 is a prime.

It is a super-2 number, since 2×4021042419892 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402104241919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201052120994 + 201052120995.

It is an arithmetic number, because the mean of its divisors is an integer number (201052120995).

Almost surely, 2402104241989 is an apocalyptic number.

It is an amenable number.

402104241989 is a deficient number, since it is larger than the sum of its proper divisors (1).

402104241989 is an equidigital number, since it uses as much as digits as its factorization.

402104241989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 402104241989 in words is "four hundred two billion, one hundred four million, two hundred forty-one thousand, nine hundred eighty-nine".