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200103979 = 239199467
BaseRepresentation
bin10111110110101…
…01100000101011
3111221112100001111
423323111200223
5402211311404
631504531151
74646566345
oct1373254053
9457470044
10200103979
11a2a54099
1257020ab7
13325c272a
141c80c295
151287a104
hexbed582b

200103979 has 8 divisors (see below), whose sum is σ = 209053440. Its totient is φ = 191175336.

The previous prime is 200103949. The next prime is 200103997. The reversal of 200103979 is 979301002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200103979 - 219 = 199579691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200103979.

It is not an unprimeable number, because it can be changed into a prime (200103949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16404 + ... + 25870.

It is an arithmetic number, because the mean of its divisors is an integer number (26131680).

Almost surely, 2200103979 is an apocalyptic number.

200103979 is a deficient number, since it is larger than the sum of its proper divisors (8949461).

200103979 is an equidigital number, since it uses as much as digits as its factorization.

200103979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10409.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 200103979 is about 14145.8113588440. The cubic root of 200103979 is about 584.9048755648.

The spelling of 200103979 in words is "two hundred million, one hundred three thousand, nine hundred seventy-nine".

Divisors: 1 23 919 9467 21137 217741 8700173 200103979