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388042142222 = 27171630429169
BaseRepresentation
bin1011010010110010001…
…11010011001000001110
31101002121022202020220102
411221121013103020032
522324202242022342
6454133013451102
740015021533620
oct5513107231016
91332538666812
10388042142222
1113a627744909
1263256640a92
132a791140457
1414ad1dd4c10
15a161bee832
hex5a591d320e

388042142222 has 16 divisors (see below), whose sum is σ = 704345401440. Its totient is φ = 156521200128.

The previous prime is 388042142221. The next prime is 388042142227. The reversal of 388042142222 is 222241240883.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388042142221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815214347 + ... + 815214822.

It is an arithmetic number, because the mean of its divisors is an integer number (44021587590).

Almost surely, 2388042142222 is an apocalyptic number.

388042142222 is a deficient number, since it is larger than the sum of its proper divisors (316303259218).

388042142222 is a wasteful number, since it uses less digits than its factorization.

388042142222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630429195.

The product of its (nonzero) digits is 98304, while the sum is 38.

The spelling of 388042142222 in words is "three hundred eighty-eight billion, forty-two million, one hundred forty-two thousand, two hundred twenty-two".

Divisors: 1 2 7 14 17 34 119 238 1630429169 3260858338 11413004183 22826008366 27717295873 55434591746 194021071111 388042142222