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10142378073 = 32612302857
BaseRepresentation
bin10010111001000100…
…00110100001011001
3222011211200012010100
421130202012201121
5131232422044243
64354230210013
7506223535242
oct113442064131
928154605110
1010142378073
114335120843
121b707b3909
13c5834b059
146c3025cc9
153e56340d3
hex25c886859

10142378073 has 18 divisors (see below), whose sum is σ = 14894253582. Its totient is φ = 6650717760.

The previous prime is 10142378069. The next prime is 10142378089. The reversal of 10142378073 is 37087324101.

It can be written as a sum of positive squares in 3 ways, for example, as 535829904 + 9606548169 = 23148^2 + 98013^2 .

It is not a de Polignac number, because 10142378073 - 22 = 10142378069 is a prime.

It is a super-4 number, since 4×101423780734 (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is not an unprimeable number, because it can be changed into a prime (10142378033) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 117940 + ... + 184917.

Almost surely, 210142378073 is an apocalyptic number.

It is an amenable number.

10142378073 is a deficient number, since it is larger than the sum of its proper divisors (4751875509).

10142378073 is an equidigital number, since it uses as much as digits as its factorization.

10142378073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302985 (or 302921 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 10142378073 in words is "ten billion, one hundred forty-two million, three hundred seventy-eight thousand, seventy-three".

Divisors: 1 3 9 61 183 549 3721 11163 33489 302857 908571 2725713 18474277 55422831 166268493 1126930897 3380792691 10142378073