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108390379 = 412926251
BaseRepresentation
bin1100111010111…
…10011111101011
321112221210122111
412131132133223
5210221443004
614431103151
72454205636
oct635363753
9245853574
10108390379
1156202329
1230371ab7
13195c0826
1410576c1d
1597b0a04
hex675e7eb

108390379 has 4 divisors (see below), whose sum is σ = 108420760. Its totient is φ = 108360000.

The previous prime is 108390361. The next prime is 108390397. The reversal of 108390379 is 973093801.

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

It is an interprime number because it is at equal distance from previous prime (108390361) and next prime (108390397).

It is a cyclic number.

It is not a de Polignac number, because 108390379 - 215 = 108357611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108390349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8997 + ... + 17254.

It is an arithmetic number, because the mean of its divisors is an integer number (27105190).

Almost surely, 2108390379 is an apocalyptic number.

108390379 is a deficient number, since it is larger than the sum of its proper divisors (30381).

108390379 is an equidigital number, since it uses as much as digits as its factorization.

108390379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30380.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 108390379 is about 10411.0700218565. The cubic root of 108390379 is about 476.7934108547.

The spelling of 108390379 in words is "one hundred eight million, three hundred ninety thousand, three hundred seventy-nine".

Divisors: 1 4129 26251 108390379