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102227408 = 246389213
BaseRepresentation
bin1100001011111…
…01110111010000
321010100200122022
412011331313100
5202132234113
614051031012
72350630043
oct605756720
9233320568
10102227408
1152782a68
122a29b468
13182435ba
14d810c5a
158e94908
hex617ddd0

102227408 has 10 divisors (see below), whose sum is σ = 198065634. Its totient is φ = 51113696.

The previous prime is 102227393. The next prime is 102227423. The reversal of 102227408 is 804722201.

It is an interprime number because it is at equal distance from previous prime (102227393) and next prime (102227423).

It can be written as a sum of positive squares in only one way, i.e., 82228624 + 19998784 = 9068^2 + 4472^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194591 + ... + 3194622.

Almost surely, 2102227408 is an apocalyptic number.

It is an amenable number.

102227408 is a deficient number, since it is larger than the sum of its proper divisors (95838226).

102227408 is an equidigital number, since it uses as much as digits as its factorization.

102227408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389221 (or 6389215 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 102227408 is about 10110.7570438618. The cubic root of 102227408 is about 467.5798454755.

Adding to 102227408 its reverse (804722201), we get a palindrome (906949609).

The spelling of 102227408 in words is "one hundred two million, two hundred twenty-seven thousand, four hundred eight".

Divisors: 1 2 4 8 16 6389213 12778426 25556852 51113704 102227408