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102201355 = 520440271
BaseRepresentation
bin1100001011101…
…11100000001011
321010022100220101
412011313200023
5202130420410
614050310231
72350461064
oct605674013
9233270811
10102201355
1152765433
122a288377
1318234799
14d80556b
158e8bd3a
hex617780b

102201355 has 4 divisors (see below), whose sum is σ = 122641632. Its totient is φ = 81761080.

The previous prime is 102201317. The next prime is 102201373. The reversal of 102201355 is 553102201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102201355 - 27 = 102201227 is a prime.

It is a Duffinian number.

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 in 3 ways as a sum of consecutive naturals, for example, 10220131 + ... + 10220140.

It is an arithmetic number, because the mean of its divisors is an integer number (30660408).

Almost surely, 2102201355 is an apocalyptic number.

102201355 is a deficient number, since it is larger than the sum of its proper divisors (20440277).

102201355 is an equidigital number, since it uses as much as digits as its factorization.

102201355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20440276.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 102201355 is about 10109.4685814834. The cubic root of 102201355 is about 467.5401206667.

Adding to 102201355 its reverse (553102201), we get a palindrome (655303556).

The spelling of 102201355 in words is "one hundred two million, two hundred one thousand, three hundred fifty-five".

Divisors: 1 5 20440271 102201355