Search a number
-
+
102231401 is a prime number
BaseRepresentation
bin1100001011111…
…10110101101001
321010100220010012
412011332311221
5202132401101
614051101305
72350644506
oct605766551
9233326105
10102231401
1152785a68
122a2a1835
131824536c
14d8124ad
158e95bbb
hex617ed69

102231401 has 2 divisors, whose sum is σ = 102231402. Its totient is φ = 102231400.

The previous prime is 102231373. The next prime is 102231431. The reversal of 102231401 is 104132201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101707225 + 524176 = 10085^2 + 724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102231401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102231431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51115700 + 51115701.

It is an arithmetic number, because the mean of its divisors is an integer number (51115701).

Almost surely, 2102231401 is an apocalyptic number.

It is an amenable number.

102231401 is a deficient number, since it is larger than the sum of its proper divisors (1).

102231401 is an equidigital number, since it uses as much as digits as its factorization.

102231401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102231401 is about 10110.9545048922. The cubic root of 102231401 is about 467.5859332820.

Adding to 102231401 its reverse (104132201), we get a palindrome (206363602).

It can be divided in two parts, 1022 and 31401, that added together give a palindrome (32423).

The spelling of 102231401 in words is "one hundred two million, two hundred thirty-one thousand, four hundred one".