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102221032 = 2312777629
BaseRepresentation
bin1100001011111…
…00010011101000
321010100100220011
412011330103220
5202132033112
614050541304
72350602334
oct605742350
9233310804
10102221032
11527791a1
122a297834
1318240724
14d80c7c4
158e92aa7
hex617c4e8

102221032 has 8 divisors (see below), whose sum is σ = 191664450. Its totient is φ = 51110512.

The previous prime is 102220997. The next prime is 102221071. The reversal of 102221032 is 230122201.

It can be written as a sum of positive squares in only one way, i.e., 72692676 + 29528356 = 8526^2 + 5434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388807 + ... + 6388822.

Almost surely, 2102221032 is an apocalyptic number.

It is an amenable number.

102221032 is a deficient number, since it is larger than the sum of its proper divisors (89443418).

102221032 is a wasteful number, since it uses less digits than its factorization.

102221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12777635 (or 12777631 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102221032 is about 10110.4417312005. The cubic root of 102221032 is about 467.5701241717.

Adding to 102221032 its reverse (230122201), we get a palindrome (332343233).

The spelling of 102221032 in words is "one hundred two million, two hundred twenty-one thousand, thirty-two".