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1028702142692 = 22743854403773
BaseRepresentation
bin11101111100000110110…
…11010000000011100100
310122100021000120100022222
432332003123100003210
5113323240222031232
62104325041011512
7134215124640230
oct16760333200344
93570230510288
101028702142692
113672a75a5584
12147452323b98
13760107c6023
1437b0a36b5c0
151bb5b474d12
hexef836d00e4

1028702142692 has 24 divisors (see below), whose sum is σ = 2105250899136. Its totient is φ = 430619501088.

The previous prime is 1028702142659. The next prime is 1028702142707. The reversal of 1028702142692 is 2962412078201.

It is a super-2 number, since 2×10287021426922 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 427200683 + ... + 427203090.

It is an arithmetic number, because the mean of its divisors is an integer number (87718787464).

Almost surely, 21028702142692 is an apocalyptic number.

It is an amenable number.

1028702142692 is an abundant number, since it is smaller than the sum of its proper divisors (1076548756444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028702142692 is a wasteful number, since it uses less digits than its factorization.

1028702142692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854403827 (or 854403825 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 1028702142692 in words is "one trillion, twenty-eight billion, seven hundred two million, one hundred forty-two thousand, six hundred ninety-two".

Divisors: 1 2 4 7 14 28 43 86 172 301 602 1204 854403773 1708807546 3417615092 5980826411 11961652822 23923305644 36739362239 73478724478 146957448956 257175535673 514351071346 1028702142692