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108200621 = 532320327
BaseRepresentation
bin1100111001100…
…00001010101101
321112121011100102
412130300022231
5210144404441
614423040445
72452455464
oct634601255
9245534312
10108200621
1156092801
12302a0125
1319555349
14105279db
15977469b
hex67302ad

108200621 has 4 divisors (see below), whose sum is σ = 108226272. Its totient is φ = 108174972.

The previous prime is 108200591. The next prime is 108200623. The reversal of 108200621 is 126002801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108200621 - 26 = 108200557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 108200593 and 108200602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108200623) by changing a digit.

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, 4841 + ... + 15486.

It is an arithmetic number, because the mean of its divisors is an integer number (27056568).

Almost surely, 2108200621 is an apocalyptic number.

It is an amenable number.

108200621 is a deficient number, since it is larger than the sum of its proper divisors (25651).

108200621 is an equidigital number, since it uses as much as digits as its factorization.

108200621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25650.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 108200621 is about 10401.9527493639. The cubic root of 108200621 is about 476.5150091047.

The spelling of 108200621 in words is "one hundred eight million, two hundred thousand, six hundred twenty-one".

Divisors: 1 5323 20327 108200621