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319703197 = 11231399091
BaseRepresentation
bin10011000011100…
…100100010011101
3211021120121100011
4103003210202131
51123321000242
651420203221
710631301202
oct2303444235
9737517304
10319703197
11154511820
128b099511
13513090b8
1430661ca9
151d101d17
hex130e489d

319703197 has 16 divisors (see below), whose sum is σ = 366589440. Its totient is φ = 275972400.

The previous prime is 319703179. The next prime is 319703201. The reversal of 319703197 is 791307913.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-319703197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319703107) 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 15 ways as a sum of consecutive naturals, for example, 30622 + ... + 39712.

It is an arithmetic number, because the mean of its divisors is an integer number (22911840).

Almost surely, 2319703197 is an apocalyptic number.

It is an amenable number.

319703197 is a deficient number, since it is larger than the sum of its proper divisors (46886243).

319703197 is a wasteful number, since it uses less digits than its factorization.

319703197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264.

The product of its (nonzero) digits is 35721, while the sum is 40.

The square root of 319703197 is about 17880.2459994263. The cubic root of 319703197 is about 683.7788440942.

The spelling of 319703197 in words is "three hundred nineteen million, seven hundred three thousand, one hundred ninety-seven".

Divisors: 1 11 23 139 253 1529 3197 9091 35167 100001 209093 1263649 2300023 13900139 29063927 319703197