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10287640763428 = 2278911909346651
BaseRepresentation
bin1001010110110100011100…
…1011000101110000100100
31100102111012101002000021211
42111231013023011300210
52322023042013412203
633514024340521204
72111154220446160
oct225550713056044
940374171060254
1010287640763428
113306a67015a16
1211a19920b0204
135981745841a2
14277cd2a5dca0
1512c912570c6d
hex95b472c5c24

10287640763428 has 48 divisors (see below), whose sum is σ = 20808271612800. Its totient is φ = 4359071059200.

The previous prime is 10287640763423. The next prime is 10287640763453. The reversal of 10287640763428 is 82436704678201.

It is a super-2 number, since 2×102876407634282 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10287640763423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29503903 + ... + 29850553.

It is an arithmetic number, because the mean of its divisors is an integer number (433505658600).

Almost surely, 210287640763428 is an apocalyptic number.

It is an amenable number.

10287640763428 is an abundant number, since it is smaller than the sum of its proper divisors (10520630849372).

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

10287640763428 is a wasteful number, since it uses less digits than its factorization.

10287640763428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358660 (or 358658 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 58.

The spelling of 10287640763428 in words is "ten trillion, two hundred eighty-seven billion, six hundred forty million, seven hundred sixty-three thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 89 178 356 623 1246 2492 11909 23818 47636 83363 166726 333452 346651 693302 1059901 1386604 2119802 2426557 4239604 4853114 7419307 9706228 14838614 29677228 30851939 61703878 123407756 215963573 431927146 863854292 4128266759 8256533518 16513067036 28897867313 57795734626 115591469252 367415741551 734831483102 1469662966204 2571910190857 5143820381714 10287640763428