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426345071187 = 37197913525747
BaseRepresentation
bin1100011010001000010…
…01011000001001010011
31111202110201110122121010
412031010021120021103
523441123314234222
6523505450302003
742542141211510
oct6150411301123
91452421418533
10426345071187
111548a2750302
126a766127903
1331286730669
14168c7040307
15b15471080c
hex6344258253

426345071187 has 32 divisors (see below), whose sum is σ = 692518297600. Its totient is φ = 227881768608.

The previous prime is 426345071167. The next prime is 426345071197. The reversal of 426345071187 is 781170543624.

It is a de Polignac number, because none of the positive numbers 2k-426345071187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426345071107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6731353 + ... + 6794394.

It is an arithmetic number, because the mean of its divisors is an integer number (21641196800).

Almost surely, 2426345071187 is an apocalyptic number.

426345071187 is a deficient number, since it is larger than the sum of its proper divisors (266173226413).

426345071187 is a wasteful number, since it uses less digits than its factorization.

426345071187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525855.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 426345071187 in words is "four hundred twenty-six billion, three hundred forty-five million, seventy-one thousand, one hundred eighty-seven".

Divisors: 1 3 7 19 21 57 79 133 237 399 553 1501 1659 4503 10507 31521 13525747 40577241 94680229 256989193 284040687 770967579 1068534013 1798924351 3205602039 5396773053 7479738091 20302146247 22439214273 60906438741 142115023729 426345071187