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1027957681428 = 223233724484353
BaseRepresentation
bin11101111010101110000…
…11010110110100010100
310122021100010201210110120
432331113003112310110
5113320224131301203
62104123124351540
7134160515060226
oct16752703266424
93567303653416
101027957681428
11366a55348837
12147284b455b0
1375c224ba5c2
1437a7953c416
151bb15e1db53
hexef570d6d14

1027957681428 has 24 divisors (see below), whose sum is σ = 2502853485888. Its totient is φ = 327754622976.

The previous prime is 1027957681393. The next prime is 1027957681469. The reversal of 1027957681428 is 8241867597201.

It is a super-2 number, since 2×10279576814282 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862241901 + ... + 1862242452.

It is an arithmetic number, because the mean of its divisors is an integer number (104285561912).

Almost surely, 21027957681428 is an apocalyptic number.

It is an amenable number.

1027957681428 is an abundant number, since it is smaller than the sum of its proper divisors (1474895804460).

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

1027957681428 is a wasteful number, since it uses less digits than its factorization.

1027957681428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724484383 (or 3724484381 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 1027957681428 in words is "one trillion, twenty-seven billion, nine hundred fifty-seven million, six hundred eighty-one thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 3724484353 7448968706 11173453059 14897937412 22346906118 44693812236 85663140119 171326280238 256989420357 342652560476 513978840714 1027957681428